Juniper Sky ATP User Manual

Sky ATP

Juniper Sky Advanced Threat Prevention

Administration Guide

Published

2020-07-01

Juniper Networks, Inc. 1133 Innovation Way Sunnyvale, California 94089 USA

408-745-2000 www.juniper.net

JuniperNetworks,theJuniperNetworkslogo,Juniper,andJunosareregisteredtrademarksofJuniperNetworks,Inc. in theUnitedStatesandothercountries. Allothertrademarks,servicemarks,registeredmarks,orregisteredservicemarks are the property of their respective owners.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

SkyATPJuniperSkyAdvancedThreatPreventionAdministrationGuide

The information in this document is current as of the date on the title page.

YEAR 2000 NOTICE

Juniper Networks hardware and software products are Year 2000 compliant. Junos OS has no known time-related limitations through the year 2038. However, the NTP application is known to have some difficulty in the year 2036.

END USER LICENSE AGREEMENT

TheJuniperNetworksproductthatisthesubjectofthistechnicaldocumentationconsistsof(orisintendedforusewith) JuniperNetworkssoftware.UseofsuchsoftwareissubjecttothetermsandconditionsoftheEndUserLicenseAgreement (“EULA”) posted at https://support.juniper.net/support/eula/. By downloading, installing or using such software, you agree to the terms and conditions of that EULA.

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About the Documentation | x

Documentation and Release Notes | x

Documentation Conventions | x

Documentation Feedback | xiii

Requesting Technical Support | xiii

Self-Help Online Tools and Resources | xiv

Creating a Service Request with JTAC | xiv

1Overview and Installation

Juniper Sky Advanced Threat Prevention Overview | 2

Juniper Sky Advanced Threat Prevention | 2

About Juniper Sky Advanced Threat Prevention | 2

Juniper Sky ATP Features | 4

How the SRX Series Device Remediates Traffic | 6

Juniper Sky ATP Use Cases | 7

Licensing | 8

How is Malware Analyzed and Detected? | 9

Analyzing and Detecting Malware | 9

Cache Lookup | 10

Antivirus Scan | 10

Static Analysis | 10

Dynamic Analysis | 11

Machine Learning Algorithm | 11

Threat Levels | 11

Licensing | 12

About Policy Enforcer | 12

Policy Enforcer | 12

Install Juniper Sky Advanced Threat Prevention | 15

Juniper Sky Advanced Threat Prevention Installation Overview | 15

Managing the Juniper Sky Advanced Threat Prevention License | 15

Obtaining the Premium License Key | 16

License Management and SRX Series Devices | 17

Juniper Sky ATP Premium Evaluation License for vSRX | 17

License Management and vSRX Deployments | 17

High Availability | 19

Registering a Juniper Sky Advanced Threat Prevention Account | 20

Downloading and Running the Juniper Sky Advanced Threat Prevention Script | 24

2The Web Portal and Enrolling SRX Series Devices

The Juniper Sky ATP Web Portal | 31

Juniper Sky Advanced Threat Prevention Configuration Overview | 31

Juniper Sky Advanced Threat Prevention Web UI Overview | 34

Accessing the Web UI | 34

Dashboard Overview | 37

Reset Password | 38

Recover Realm Name | 40

Enroll SRX Series Devices | 43

Enrolling an SRX Series Device With Juniper Sky Advanced Threat Prevention | 43

Enrolling an SRX Series Device without the Juniper Sky ATP Web Portal | 47

Removing an SRX Series Device From Juniper Sky Advanced Threat Prevention | 49

Searching for SRX Series Devices Within Juniper Sky Advanced Threat Prevention | 50

Juniper Sky Advanced Threat Prevention RMA Process | 53

Device Information | 53

Cloud Feeds for Juniper Sky Advanced Threat Prevention: More Information | 54

3Configure

Whitelists and Blacklists | 57

Whitelist and Blacklist Overview | 57

Creating Whitelists and Blacklists | 59

Email Scanning: Juniper Sky ATP | 65

Email Management Overview | 65

Email Management: Configure SMTP | 67

Email Management: Configure IMAP | 70

Email Scanning: SRX Series Device | 74

Configuring the SMTP Email Management Policy on the SRX Series Device | 74

Configuring the IMAP Email Management Policy on the SRX Series Device | 80

Configuring Reverse Proxy on the SRX Series Device | 88

File Inspection Profiles | 92

File Inspection Profiles Overview | 92

Creating File Inspection Profiles | 94

Adaptive Threat Profiling | 97

Adaptive Threat Profiling Overview | 97

Overview | 97

Configure Adaptive Threat Profiling | 99

Deploy Adaptive Threat Profiling | 101

Use Case Examples | 103

Threat Detection Use Case | 103

Asset Classification Use Case | 107

Create an Adaptive Threat Profiling Feed | 108

Third Party Threat Feeds | 110

Enabling Third Party Threat Feeds | 110

Global Configurations | 116

Global Configuration for Infected Hosts | 116

Configuring Threat Intelligence Sharing | 119

Configuring Trusted Proxy Servers | 121

Realm Overview | 122

Realms and Tenant Systems | 122

Configuration Overview | 123

SRX Series and Tenant System Enrollment | 123

Realm Management | 124

Tenant Systems: Security-Intelligence and Anti-Malware Policies | 126

Tenant System Support for SecIntel Feeds | 126

Tenant System Support for AAMW | 127

Security Profile CLI | 129

4Monitor and Take Action

Reports | 131

Reports Overview | 131

Configure Report Definitions | 135

Hosts | 137

Hosts Overview | 137

Host Details | 140

Identifying Infected Hosts | 142

Compromised Hosts: More Information | 142

About Block Drop and Block Close | 146

Host Details | 147

Automatic Lowering of Host Threat Level or Removal from Infected Hosts Feed | 148

Configuring the SRX Series Devices to Block Infected Hosts | 149

Command and Control Servers | 153

Command and Control Servers Overview | 153

Command and Control Server Details | 154

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Identify Hosts Communicating with Command and Control Servers | 158

Command and Control Servers: More Information | 158

Configuring the SRX Series Device to Block Outbound Requests to a C&C Host | 161

File Scanning | 164

HTTP File Download Overview | 164

HTTP File Download Details | 166

File Summary | 167

HTTP Downloads | 168

Sample STIX Report | 169

Manual Scanning Overview | 169

File Scanning Limits | 171

Email Scanning | 173

Email Attachments Scanning Overview | 173

Email Attachments Scanning Details | 174

File Summary | 176

SMTP Quarantine Overview: Blocked Emails | 177

IMAP Block Overview | 179

Telemetry | 181

Telemetry Overview | 181

Telemetry Details | 183

Encrypted Traffic Analysis | 185

Encrypted Traffic Analysis Overview | 185

Encrypted Traffic Analysis and Detection | 186

Workflow | 187

Configurations on SRX Series Devices | 188

Encrypted Traffic Analysis Details | 189

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5Policies on the SRX Series Device

Configure Juniper Sky ATP Policies on the SRX Series Device | 193

Juniper Sky Advanced Threat Prevention Policy Overview | 193

Enabling Juniper Sky ATP for Encrypted HTTPS Connections | 196

Example: Configuring a Juniper Sky Advanced Threat Prevention Policy Using the CLI | 197

Unified Policies | 202

Explicit Web Proxy Support | 204

Configure IP-Based Geolocations on the SRX Series Device | 206

Geolocation IPs and Juniper Sky Advanced Threat Prevention | 206

Configuring Juniper Sky Advanced Threat Prevention With Geolocation IP | 207

6Administration

Juniper Sky ATP Administration | 210

Modifying My Profile | 210

Creating and Editing User Profiles | 211

Application Tokens Overview | 213

Creating Application Tokens | 213

Multi-Factor Authentication Overview | 215

Configure Multi-Factor Authentication for Administrators | 215

Enable Multi-Factor Authentication | 216

Verification Codes for Multi-Factor Authentication: Mobile SMS | 217

Verification Codes for Multi-Factor Authentication: Email | 217

Unlock a User | 218

7Troubleshoot

Troubleshooting Topics | 220

Juniper Sky Advanced Threat Prevention Troubleshooting Overview | 220

Troubleshooting Juniper Sky Advanced Threat Prevention: Checking DNS and Routing

Configurations | 221

Troubleshooting Juniper Sky Advanced Threat Prevention: Checking Certificates | 224

TroubleshootingJuniperSkyAdvancedThreatPrevention:CheckingtheRoutingEngineStatus | 226 request services advanced-anti-malware data-connection | 228

request services advanced-anti-malware diagnostic | 230

TroubleshootingJuniperSkyAdvancedThreatPrevention:Checkingtheapplication-identification

License | 234

Viewing Juniper Sky Advanced Threat Prevention System Log Messages | 235

Configuring traceoptions | 236

Viewing the traceoptions Log File | 238

Turning Off traceoptions | 238

Juniper Sky Advanced Threat Prevention Dashboard Reports Not Displaying | 239

Juniper Sky Advanced Threat Prevention RMA Process | 240

8More Documentation

Sky ATP Tech Library Page Links | 242

Links to Documentation on Juniper.net | 242

About the Documentation

IN THIS SECTION

Documentation and Release Notes | x

Documentation Conventions | x

Documentation Feedback | xiii

Requesting Technical Support | xiii

Use this guide to configure, monitor, and manage Juniper Sky ATP features to protect all hosts in your network against evolving security threats.

Documentation and Release Notes

To obtain the most current version of all Juniper Networks® technical documentation, see the product documentation page on the Juniper Networks website at https://www.juniper.net/documentation/.

Iftheinformationinthelatestreleasenotesdiffersfromtheinformationinthedocumentation,followthe product Release Notes.

Juniper Networks Books publishes books by Juniper Networks engineers and subject matter experts. These books go beyond the technical documentation to explore the nuances of network architecture, deployment, and administration. The current list can be viewed at https://www.juniper.net/books.

Documentation Conventions

Table 1 on page xi defines notice icons used in this guide.

Table 1: Notice Icons
Icon	Meaning	Description
	Informational note	Indicates important features or instructions.
	Caution	Indicates a situation that might result in loss of data or hardware
		damage.
	Warning	Alerts you to the risk of personal injury or death.
	Laser warning	Alerts you to the risk of personal injury from a laser.
	Tip	Indicates helpful information.
	Best practice	Alerts you to a recommended use or implementation.

Table 2 on page xi defines the text and syntax conventions used in this guide.

Table 2: Text and Syntax Conventions

Convention	Description	Examples
Bold text like this	Represents text that you type.	To enter configuration mode, type
		the configure command:
		user@host> configure
Fixed-width text like this	Represents output that appears on	user@host> show chassis alarms
	the terminal screen.	No alarms currently active
		No alarms currently active

Italictextlikethis	• Introducesoremphasizesimportant
	new terms.
	• Identifies guide names.
	• Identifies RFC and Internet draft
	titles.

•A policy term is a named structure that defines match conditions and actions.

•JunosOSCLIUserGuide

•RFC 1997, BGPCommunities Attribute

xii

Table 2: Text and Syntax Conventions (continued)

Convention	Description
Italictextlikethis	Represents variables (options for
	which you substitute a value) in
	commands or configuration
	statements.

Examples

Configure the machine’s domain name:

[edit]

root@# set system domain-name domain-name

Text like this	Represents names of configuration
	statements, commands, files, and
	directories; configuration hierarchy
	levels; or labels on routing platform
	components.

•To configure a stub area, include the stub statement at the [edit protocols ospf area area-id] hierarchy level.

•The console port is labeled

CONSOLE.

< > (angle brackets)	Encloses optional keywords or
	variables.
\| (pipe symbol)	Indicates a choice between the
	mutually exclusive keywords or
	variablesoneithersideofthesymbol.
	The set of choices is often enclosed
	in parentheses for clarity.

stub <default-metric metric>;

broadcast | multicast

(string1 | string2 | string3)

# (pound sign)

[ ] (square brackets)

Indention and braces ( { } )

; (semicolon)

Indicatesacommentspecifiedonthe	rsvp{#RequiredfordynamicMPLS
same line as the configuration	only
statement to which it applies.
Enclosesavariableforwhichyoucan	community name members [
substitute one or more values.	community-ids ]
Identifies a level in the configuration	[edit]
hierarchy.	routing-options {
	static {
Identifies a leaf statement at a	route default {
configuration hierarchy level.	nexthop address;
	retain;
	}
	}
	}

GUI Conventions

xiii

Table 2: Text and Syntax Conventions (continued)
Convention	Description	Examples
Bold text like this	Represents graphical user interface	• IntheLogicalInterfacesbox,select
	(GUI) items you click or select.	All Interfaces.
		• To cancel the configuration, click
		Cancel.
> (bold right angle bracket)	Separates levels in a hierarchy of	Intheconfigurationeditorhierarchy,
	menu selections.	select Protocols>Ospf.

Documentation Feedback

We encourage you to provide feedback so that we can improve our documentation. You can use either of the following methods:

•Online feedback system—Click TechLibrary Feedback, on the lower right of any page on the Juniper Networks TechLibrary site, and do one of the following:

•Click the thumbs-up icon if the information on the page was helpful to you.

•Click the thumbs-down icon if the information on the page was not helpful to you or if you have suggestions for improvement, and use the pop-up form to provide feedback.

•E-mail—Sendyourcommentstotechpubs-comments@juniper.net.Includethedocumentortopicname, URL or page number, and software version (if applicable).

Requesting Technical Support

TechnicalproductsupportisavailablethroughtheJuniperNetworksTechnicalAssistanceCenter(JTAC). If you are a customer with an active Juniper Care or Partner Support Services support contract, or are

xiv

covered under warranty, and need post-sales technical support, you can access our tools and resources online or open a case with JTAC.

•JTACpolicies—ForacompleteunderstandingofourJTACproceduresandpolicies,reviewtheJTACUser Guide located at https://www.juniper.net/us/en/local/pdf/resource-guides/7100059-en.pdf.

•Productwarranties—Forproductwarrantyinformation,visithttps://www.juniper.net/support/warranty/.

•JTAC hours of operation—The JTAC centers have resources available 24 hours a day, 7 days a week, 365 days a year.

Self-Help Online Tools and Resources

Forquickandeasyproblemresolution,JuniperNetworkshasdesignedanonlineself-serviceportalcalled the Customer Support Center (CSC) that provides you with the following features:

•Find CSC offerings: https://www.juniper.net/customers/support/

•Search for known bugs: https://prsearch.juniper.net/

•Find product documentation: https://www.juniper.net/documentation/

•Find solutions and answer questions using our Knowledge Base: https://kb.juniper.net/

•Download the latest versions of software and review release notes: https://www.juniper.net/customers/csc/software/

•Search technical bulletins for relevant hardware and software notifications: https://kb.juniper.net/InfoCenter/

•Join and participate in the Juniper Networks Community Forum: https://www.juniper.net/company/communities/

•Create a service request online: https://myjuniper.juniper.net

To verify service entitlement by product serial number, use our Serial Number Entitlement (SNE) Tool: https://entitlementsearch.juniper.net/entitlementsearch/

Creating a Service Request with JTAC

You can create a service request with JTAC on the Web or by telephone.

•Visit https://myjuniper.juniper.net.

•Call 1-888-314-JTAC (1-888-314-5822 toll-free in the USA, Canada, and Mexico).

For international or direct-dial options in countries without toll-free numbers, see https://support.juniper.net/support/requesting-support/.

PART

Overview and Installation

Juniper Sky Advanced Threat Prevention Overview | 2

Install Juniper Sky Advanced Threat Prevention | 15

CHAPTER 1

Juniper Sky Advanced Threat Prevention Overview

IN THIS CHAPTER

Juniper Sky Advanced Threat Prevention | 2

How is Malware Analyzed and Detected? | 9

About Policy Enforcer | 12

Juniper Sky Advanced Threat Prevention

IN THIS SECTION

About Juniper Sky Advanced Threat Prevention | 2

Juniper Sky ATP Features | 4

How the SRX Series Device Remediates Traffic | 6

Juniper Sky ATP Use Cases | 7

Licensing | 8

About Juniper Sky Advanced Threat Prevention

JuniperSky™AdvancedThreatPrevention(JuniperSkyATP)isasecurityframeworkthatprotectsallhosts in your network against evolving security threats by employing cloud-based threat detection software with a next-generation firewall system. See Figure 1 on page 3.

Figure 1: Juniper Sky ATP Overview

Juniper Sky ATP protects your network by performing the following tasks:

•The SRX Series device extracts potentially malicious objects and files and sends them to the cloud for analysis.

•Known malicious files are quickly identified and dropped before they can infect a host.

•Multiple techniques identify new malware, adding it to the known list of malware.

•CorrelationbetweennewlyidentifiedmalwareandknownCommandandControl(C&C)sitesaidsanalysis.

•The SRX Series device blocks known malicious file downloads and outbound C&C traffic.

Juniper Sky ATP supports the following modes:

•Layer 3 mode

•Tap mode

•Transparent mode using MAC address. For more information, see Transparent mode on SRX Series devices.

•Secure wire mode (high-level transparent mode using the interface to directly passing traffic, not by MAC address.) For more information, see Understanding Secure Wire.

Juniper Sky ATP Features

Juniper Sky ATP is a cloud-based solution. Cloud environments are flexible and scalable, and a shared environmentensuresthateveryonebenefitsfromnewthreatintelligenceinnearreal-time.Yoursensitive dataissecuredeventhoughitisinacloudsharedenvironment.Securityanalystscanupdatetheirdefense when new attack techniques are discovered and distribute the threat intelligence with very little delay.

In addition, Juniper Sky ATP offers the following features:

•Integrated with the SRX Series device to simplify deployment and enhance the anti-threat capabilities of the firewall.

•Delivers protection against “zero-day” threats using a combination of tools to provide robust coverage against sophisticated, evasive threats.

•Checks inbound and outbound traffic with policy enhancements that allow users to stop malware, quarantine infected systems, prevent data exfiltration, and disrupt lateral movement.

•High availability to provide uninterrupted service.

•Scalabletohandleincreasingloadsthatrequiremorecomputingresources,increasednetworkbandwidth to receive more customer submissions, and a large storage for malware.

•Provides deep inspection, actionable reporting, and inline malware blocking.

•APIs for C&C feeds, whitelist and blacklist operations, and file submission. See the Threat Intelligence Open API Setup Guide for more information.

Figure 2 on page 5 lists the Juniper Sky ATP components.

Figure 2: Juniper Sky ATP Components

Table 3 on page 5 briefly describes each Juniper Sky ATP component’s operation.

Table 3: Juniper Sky ATP Components

Component	Operation
Commandandcontrol(C&C)cloud	C&Cfeedsareessentiallyalistofserversthatareknowncommandandcontrol
feeds	forbotnets. Thelistalsoincludesserversthatareknownsourcesformalware
	downloads.
GeoIP cloud feeds	GeoIPfeedsisanup-to-datemappingofIPaddressestogeographicalregions.
	This gives you the ability to filter traffic to and from specific geographies in
	the world.
Infected host cloud feeds	Infectedhostsindicatelocaldevicesthatarepotentiallycompromisedbecause
	they appear to be part of a C&C network or other exhibit other symptoms.
Whitelists, blacklists and custom	A whitelist is simply a list of known IP addresses that you trust and a blacklist
cloud feeds	is a list that you do not trust.
	NOTE: Custom feeds are not supported in this release.

Table 3: Juniper Sky ATP Components (continued)

Component	Operation
SRX Series device	Submits extracted file content for analysis and detected C&C hits inside the
	customer network.
	Performs inline blocking based on verdicts from the analysis cluster.
Malware inspection pipeline	Performs malware analysis and threat detection.
Internal compromise detection	Inspects files, metadata, and other information.
Service portal (Web UI)	Graphics interface displaying information about detected threats inside the
	customer network.
	Configuration management tool where customers can fine-tune which file
	categories can be submitted into the cloud for processing.

How the SRX Series Device Remediates Traffic

The SRX Series devices use intelligence provided by Juniper Sky ATP to remediate malicious content throughtheuseofsecuritypolicies.Ifconfigured,securitypoliciesblockthatcontentbeforeitisdelivered to the destination address.

Forinboundtraffic,securitypoliciesontheSRXSeriesdevicelookforspecifictypesoffiles,like .exefiles, to inspect. When one is encountered, the security policy sends the file to the Juniper Sky ATP cloud for inspection.TheSRXSeriesdeviceholdsthelastfewKBofthefilefromthedestinationclientwhileJuniper Sky ATP checks if this file has already been analyzed. If so, a verdict is returned and the file is either sent to the client or blocked depending on the file’s threat level and the user-defined policy in place. If the cloud has not inspected this file before, the file is sent to the client while Juniper Sky ATP performs an exhaustive analysis. If the file’s threat level indicates malware (and depending on the user-defined configurations) the client system is marked as an infected host and blocked from outbound traffic. For more information, see “How is Malware Analyzed and Detected?” on page 9.

Figure 3 on page 7 shows an example flow of a client requesting a file download with Juniper Sky ATP.

Figure 3: Inspecting Inbound Files for Malware

Step Description

1AclientsystembehindanSRXSeriesdevicesrequestsafiledownloadfromtheInternet.TheSRXSeries device forwards that request to the appropriate server.

2TheSRXSeriesdevicereceivesthedownloadedfileandchecksitssecurityprofiletoseeifanyadditional action must be performed.

3Thedownloadedfiletypeisonthelistoffilesthatmustbeinspectedandissenttothecloudforanalysis.

4Juniper Sky ATP has inspected this file before and has the analysis stored in cache. In this example, the file is not malware and the verdict is sent back to the SRX Series device.

5Basedonuser-definedpoliciesandbecausethisfileisnotmalware,theSRXSeriesdevicesendsthefile to the client.

For outbound traffic, the SRX Series device monitors traffic that matches C&C feeds it receives, blocks these C&C requests, and reports them to Juniper Sky ATP. A list of infected hosts is available so that the SRX Series device can block inbound and outbound traffic.

Juniper Sky ATP Use Cases

Juniper Sky ATP can be used anywhere in an SRX Series deployment. See Figure 4 on page 8.

Figure 4: Juniper Sky ATP Use Cases

•Campus edge firewall—Juniper Sky ATP analyzes files downloaded from the Internet and protects end-user devices.

•Datacenteredge—Likethecampusedgefirewall,JuniperSkyATPpreventsinfectedfilesandapplication malware from running on your computers.

•Branch router—Juniper Sky ATP provides protection from split-tunneling deployments. A disadvantage of split-tunneling is that users can bypass security set in place by your company’s infrastructure.

Licensing

Juniper Sky ATP has three service levels: Free, Basic (feed only), and Premium. No license is required for the free version, but you must obtain a license for Basic and Premium levels.

To understand more about Juniper Sky ATP licenses, see Licenses for Juniper Sky Advanced Threat Prevention(ATP).PleaserefertotheLicensingGuideforgeneralinformationaboutLicenseManagement. Please refer to the product Data Sheets for further details, or contact your Juniper Account Team or Juniper Partner.

How is Malware Analyzed and Detected?

IN THIS SECTION

Analyzing and Detecting Malware | 9

Cache Lookup | 10

Antivirus Scan | 10

Static Analysis | 10

Dynamic Analysis | 11

Machine Learning Algorithm | 11

Threat Levels | 11

Licensing | 12

Analyzing and Detecting Malware

Juniper Sky ATP uses a pipeline approach to analyzing and detecting malware. If an analysis reveals that thefileisabsolutelymalware,itisnotnecessarytocontinuethepipelinetofurtherexaminethemalware. See Figure 5 on page 9.

Figure 5: Example Juniper Sky ATP Pipeline Approach for Analyzing Malware

Each analysis technique creates a verdict number, which is combined to create a final verdict number between 1 and 10. A verdict number is a score or threat level. The higher the number, the higher the malware threat. The SRX Series device compares this verdict number to the policy settings and either permits or denies the session. If the session is denied, a reset packet is sent to the client and the packets are dropped from the server.

Cache Lookup

When a file is analyzed, a file hash is generated, and the results of the analysis are stored in a database. When a file is uploaded to the Juniper Sky ATP cloud, the first step is to check whether this file has been looked at before. If it has, the stored verdict is returned to the SRX Series device and there is no need to re-analyze the file. In addition to files scanned by Juniper Sky ATP, information about common malware files is also stored to provide faster response.

Cachelookupisperformedinrealtime. Allothertechniquesaredoneoffline. Thismeansthatifthecache lookup does not return a verdict, the file is sent to the client system while the Juniper Sky ATP cloud continuestoexaminethefileusingtheremainingpipelinetechniques. Ifalateranalysisreturnsamalware verdict, then the file and host are flagged.

Antivirus Scan

The advantage of antivirus software is its protection against a large number of potential threats, such as viruses, trojans, worms, spyware, and rootkits. The disadvantage of antivirus software is that it is always behind the malware. The virus comes first and the patch to the virus comes second. Antivirus is better at defending familiar threats and known malware than zero-day threats.

Juniper Sky ATP utilizes multiple antivirus software packages, not just one, to analyze a file. The results are then fed into the machine learning algorithm to overcome false positives and false negatives.

Static Analysis

Static analysis examines files without actually running them. Basic static analysis is straightforward and fast, typically around 30 seconds. The following are examples of areas static analysis inspects:

•Metadata information—Name of the file, the vendor or creator of this file, and the original data the file was compiled on.

•Categoriesofinstructionsused—IsthefilemodifyingtheWindowsregistry?IsittouchingdiskI/OAPIs?.

•File entropy—How random is the file? A common technique for malware is to encrypt portions of the code and then decrypt it during runtime. A lot of encryption is a strong indication a this file is malware.

Theoutputofthestaticanalysisisfedintothemachinelearningalgorithmtoimprovetheverdictaccuracy.

Dynamic Analysis

The majority of the time spent inspecting a file is in dynamic analysis. With dynamic analysis, often called sandboxing, a file is studied as it is executed in a secure environment. During this analysis, an operating system environment is set up, typically in a virtual machine, and tools are started to monitor all activity. The file is uploaded to this environment and is allowed to run for several minutes. Once the allotted time haspassed,therecordofactivityisdownloadedandpassedtothemachinelearningalgorithmtogenerate a verdict.

Sophisticated malware can detect a sandbox environment due to its lack of human interaction, such as mouse movement. Juniper Sky ATP uses a number of deceptiontechniques to trick the malware into determining this is a real user environment. For example, Juniper Sky ATP can:

•Generate a realistic pattern of user interaction such as mouse movement, simulating keystrokes, and installing and launching common software packages.

•Createfakehigh-valuetargetsintheclient,suchasstoredcredentials,userfiles,andarealisticnetwork with Internet access.

•Create vulnerable areas in the operating system.

Deceptiontechniquesbythemselvesgreatlyboostthedetectionratewhilereducingfalsepositives. They alsobooststhedetectionrateofthesandboxthefileisrunninginbecausetheygetthemalwaretoperform more activity. The more the file runs the more data is obtained to detect whether it is malware.

Machine Learning Algorithm

JuniperSkyATPusesitsownproprietaryimplementationofmachinelearningtoassistinanalysis.Machine learning recognizes patterns and correlates information for improved file analysis. The machine learning algorithm is programmed with features from thousands of malware samples and thousands of goodware samples.Itlearnswhatmalwarelookslike,andisregularlyre-programmedtogetsmarterasthreatsevolve.

Threat Levels

Juniper Sky ATP assigns a number between 0-10 to indicate the threat level of files scanned for malware and the threat level for infected hosts. See Table 4 on page 11.

Table 4: Threat Level Definitions
Threat Level	Definition
0	Clean; no action is required.
1 - 3	Low threat level.

4 - 6

Medium threat level.

Table 4: Threat Level Definitions (continued)

Threat Level	Definition
7 -10	High threat level.

For more information on threat levels, see the Juniper Sky ATP Web UI online help.

Licensing

Juniper Sky ATP has three service levels: Free, Basic (feed only), and Premium. No license is required for the free version, but you must obtain a license for Basic and Premium levels.

About Policy Enforcer

IN THIS SECTION

Policy Enforcer | 12

Policy Enforcer

View the Policy Enforcer data sheet (This takes you out of the help center to the Juniper web site): https://www.juniper.net/assets/fr/fr/local/pdf/datasheets/1000602-en.pdf

Policy Enforcer provides centralized, integrated management of all your security devices (both physical and virtual), giving you the ability to combine threat intelligence from different solutions and act on that intelligence from one management point.

It also automates the enforcement of security policies across the network and quarantines infected endpointstopreventthreatsacrossfirewallsandswitches.Itworkswithcloud-basedJuniperSkyAdvanced Threat Prevention (Juniper Sky ATP) to protect both perimeter-oriented threats as well as threats within thenetwork. Forexample,ifauserdownloadsafilefromtheInternetandthatfilepassesthroughanSRX firewall, the file can be sent to the Juniper Sky ATP cloud for malware inspection (depending on your configuration settings.) If the file is determined to be malware, Policy Enforcer identifies the IP address and MAC address of the host that downloaded the file. Based on a user-defined policy, that host can be put into a quarantine VLAN or blocked from accessing the Internet.

Policy Enforcer provides the following:

•Pervasive Security—Combine security features and intelligence from devices across your network, including switches, routers, firewalls, to create a “secure fabric” that leverages information you can use to create policies that address threats in real-time and into the future. With monitoring capabilities, it can also act as a sensor, providing visibility for intraand inter-network communications.

•User Intent-Based Policies—Create policies according to logical business structures such as users, user groups, geographical locations, sites, tenants, applications, or threat risks. This allows network devices (switches,routers,firewallsandothersecuritydevices)toshareinformation,resources,andwhenthreats are detected, remediation actions within the network.

•Threat Intelligence Aggregation—Gather threat information from multiple locations and devices, both physical and virtual, as well as third party solutions.

Figure 6 on page 14 illustrates the flow diagram of Policy Enforcer over a traditional SRX configuration.

Figure 6: Comparing Traditional SRX Customers to Policy Enforcer Customers

Install Juniper Sky Advanced Threat Prevention

IN THIS CHAPTER

Juniper Sky Advanced Threat Prevention Installation Overview | 15

Managing the Juniper Sky Advanced Threat Prevention License | 15

Registering a Juniper Sky Advanced Threat Prevention Account | 20

Downloading and Running the Juniper Sky Advanced Threat Prevention Script | 24

Juniper Sky Advanced Threat Prevention Installation Overview

Although Juniper Sky ATP is a free add-on to an SRX Series device, you must still enable it prior to using it. To enable Juniper Sky ATP, perform the following tasks:

1.(Optional) Obtain a Juniper Sky ATP premium license. See Licenses for Juniper Sky Advanced Threat Prevention (ATP). This link takes you to the Juniper Licensing Guide.

2.RegisteranaccountontheJuniperSkyATPcloudWebportal.See“RegisteringaJuniperSkyAdvanced Threat Prevention Account” on page 20.

3.DownloadandruntheJuniperSkyATPscriptonyourSRXSeriesdevice.See“DownloadingandRunning the Juniper Sky Advanced Threat Prevention Script” on page 24.

Managing the Juniper Sky Advanced Threat Prevention License

IN THIS SECTION

Obtaining the Premium License Key | 16

License Management and SRX Series Devices | 17

Juniper Sky ATP Premium Evaluation License for vSRX | 17

License Management and vSRX Deployments | 17

High Availability | 19

ThistopicdescribeshowtoinstalltheJuniperSkyATPpremiumlicenseontoyourSRXSeriesdevicesand vSRXdeployments. YoudonotneedtoinstalltheJuniperSkyATPfreelicenseastheseareincludedyour basesoftware.Notethatthefreelicensehasalimitedfeatureset(seeJuniperSkyAdvancedThreatPrevention LicenseTypes and SkyAdvancedThreatPreventionFileLimitations).

When installing the license key, you must use the license that is specific your device type. For example, the Juniper Sky ATP premium license available for the SRX Series device cannot be used on vSRX deployments.

Obtaining the Premium License Key

The Juniper Sky ATP premium license can be found on the Juniper Networks product price list. The procedure for obtaining the premium license entitlement is the same as for all other Juniper Network products. The following steps provide an overview.

1.Contact your local sales office or Juniper Networks partner to place an order for the Juniper Sky ATP premium license.

Afteryourorderiscomplete,anauthorizationcodeise-mailedtoyou.Anauthorizationcodeisaunique 16-digitalphanumericusedinconjunctionwithyourdeviceserialnumbertogenerateapremiumlicense entitlement.

2.(SRX Series devices only) Use the show chassis hardware CLI command to find the serial number of the SRX Series devices that are to be tied to the Juniper Sky ATP premium license.

[edit]
root@SRX# run show chassis hardware
Hardware inventory:
Item	Version	Part number	Serial number	Description
Chassis			CM1915AK0326	SRX1500
Midplane	REV 09	750-058562	ACMH1590	SRX1500
Pseudo CB 0
Routing Engine 0		BUILTIN	BUILTIN	SRX Routing Engine
FPC 0	REV 08	711-053832	ACMG3280	FEB
PIC 0		BUILTIN	BUILTIN	12x1G-T-4x1G-SFP-4x10G

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Juniper Sky ATP User Manual

Table of Contents

About the Documentation

Documentation and Release Notes

Documentation Conventions

Documentation Feedback

Requesting Technical Support

Self-Help Online Tools and Resources

Creating a Service Request with JTAC

Overview and Installation

Juniper Sky Advanced Threat Prevention Overview

Juniper Sky Advanced Threat Prevention

About Juniper Sky Advanced Threat Prevention

Juniper Sky ATP Features

How the SRX Series Device Remediates Traffic

Juniper Sky ATP Use Cases

Licensing

How is Malware Analyzed and Detected?

Analyzing and Detecting Malware

Cache Lookup

Antivirus Scan

Static Analysis

Dynamic Analysis

Machine Learning Algorithm

Threat Levels

Licensing

About Policy Enforcer

Policy Enforcer

Install Juniper Sky Advanced Threat Prevention

Juniper Sky Advanced Threat Prevention Installation Overview

Managing the Juniper Sky Advanced Threat Prevention License

Obtaining the Premium License Key