Sample CEF and Syslog Notifications
Sample CEF, LEEF, and Syslog notification examples are shown for various event types in this section.
The definitions for each of the <extension> field keys per event type are provided in the section CEF Extension Field Key=Value Pair Definitions
Be aware that if a value is null, the label will still display in the notification; for example, dst= and filename remain blank in the CEF message:
eventId=13423 lastActivityTime=2016-7-26 21:50:50+00 dst= fileHash=c01e057e6b7115057d9465311346f198a7fed574 fileName= fileType=PE32 executable
CEF Phishing Event Examples:
Phishing events are included in CEF/Syslog. Here are few examples:
Example 1: Email with Both Malicious URL and Attachment
Dec 6 16:52:22 IP Dec 06 16:51:38 hostname CEF:0|JATP|Cortex|3.6.0.1444|email|Phishing|8|externalId=1504 eventId=14067 lastActivityTime=2016-12-06 23:51:38+00 src= dst= src_hostname= dst_hostname= src_username= dst_username= mailto:src_email_id=src@abc.comdst_email_id={mailto:test@abc.com} startTime=2016-12- 06 23:51:38+00 url=http://greatfilesarey.asia/QA/files_to_pcaps/74280968a4917da52b5555351eeda969.bin fileHash=bce00351cfc559afec5beb90ea387b03788e4af5 fileType=PE32 executable (GUI) Intel 80386, for MS Windows
Example 2: Email Sent to Multiple Recipients with Malicious Attachment
Dec 9 19:47:19 IP Dec 09 19:49:36 hostname CEF:0|JATP|Cortex|3.6.0.1444|email|TROJAN_GIPPERS.DC|8|externalId=1505 eventId=14068 lastActivityTime=2016-05-10 02:49:36+00 src= dst= src_hostname= dst_hostname= src_username= dst_username= mailto:src_email_id=src@abc.com dst_email_id={mailto:test1@abc.com,mailto:test2@abc.com,mailto:test3@abc.com} fileHash=bce00351cfc559afec5beb90ea387b03788e4af5 fileType=PE32 executable (GUI) Intel 80386, for MS Windows startTime=2016-05-10 02:49:36.000000+00
Example 3: Email Sent to Multiple Recipients with Multiple Bad URLs (Separated by Space) and Attachment
Dec 3 16:42:24 IP Dec 03 16:42:54 hostname CEF:0|JATP|Cortex|3.6.0.1444|email|Phishing|8|externalId=1499 eventId=14058 lastActivityTime=2016-05-03 23:42:54+00 src= dst= src_hostname= dst_hostname= src_username= dst_username= mailto:src_email_id=src@abc.com dst_email_id={mailto:test1@abc.com,mailto:test2@abc.com,mailto:test3@abc.com} startTime=2016- 05-03 23:42:54+00 url=http://greatfilesarey.asia/QA/files_to_pcaps/ 74280968a4917da52b5555351eeda969.bin http://greatfilesarey.asia/QA/ files_to_pcaps/1813791bcecf3a3af699337723a30882.bin fileHash=bce00351cfc559afec5beb90ea387b03788e4af5 fileType=PE32 executable (GUI) Intel 80386, for MS Windows
Example 4: Infection Event for which Identity Information is Obtained from Active Directory
Dec 2 17:17:25 IP Dec 02 17:08:08 hostname CEF:0|JATP|Cortex|3.6.0.1444|cnc|TROJAN_DUSVEXT.CY|10|externalId=1489 eventId=14046 lastActivityTime=2016-05-03 00:08:08.349+00 src=31.170.165.131 dst=172.20.1.201 src_hostname= dsthostname=emailuser-host src_username= dst_username=emailuser malwareSeverity=0.75 malwareCategory=Trojan_Generic cncServers=31.170.165.131
CEF System Health Notification Example:
2016-01-23 17:36:39.841+00 tap0.test.JATP.net CEF:0|JATP|Cortex|3.6.0.3|3|services-health|5|desc=Behavior Engine is not running json={"status": "0", "service": "Behavior Engine"} source = udp:514 sourcetype = syslog
2016-01-23 17:36:39.841+00 tap0.test.JATP.net CEF:0|JATP|Cortex|3.6.0.3|3|appliance-connect-health|5|desc=Lost connection to web_collector upgrade (10.2.11.107) for 10 minutes json={"ip": "10.2.11.107", "age": 10.3804142, "type": "web_collector", "appliance": "upgrade", "pretty_age": "10 minutes"}
Syslog System Health Notification Example:
<134>Nov 24 17:22:56 tap54.eng.JATP.net JATP: CEF:0|JATP|Cortex|3.6.0.15|3|traffic-health|5|desc=10.2.20.54 (10.2.20.54) received 0 KB of monitor traffic over last 10 minutes json={"pretty_age": "10 minutes", "ip": "10.2.20.54", "age": 10, "appliance": "10.2.20.54", "sample_size": 2, "traffic": "0”}
The priority value in syslog headers from pcaps is “134”. The Juniper ATP Appliance mirrors the output of CEF for the fields supported by Syslog to generate Syslog output
CEF Download (DL) Malware Event Notification Examples
2016-7-11 17:36:39.841+00 tap0.test.JATP.net CEF:0|JATP|Cortex|3.6.0.12|http|TROJAN_Zemot.CY|5|eventId=123 src=50.154.149.189 dst=192.168.1.10 startTime=2016-6-30 01:05:16.001+00fileHash=1d81e21db086a2c385696f17f17bdde6d4be04d fileName=ccaed7c3c6e58a2844c9896246997f62.bin fileType=PE32 executable (GUI) Intel 80386, for MS Windows startTime=2016-08-11 17:36:39.841+00
Syslog Download (DL) Malware Event Notification Examples
<134>Nov 23 21:58:05 tap54.eng.JATP.net JATP: CEF:0|JATP|Cortex|3.6.0.15|http|TROJAN_GIPPERS.DC|8|externalId=374 eventId=13348 lastActivityTime=2016-02-24 05:58:05.151123+00 src=172.16.0.1 dst=10.1.1.26 fileHash=acf69d292d2928c5ddfe5e6af562cd482e6812dc fileName=79ea1163c0844a2d2b6884a31fc32cc4.bin fileType=PE32 executable (GUI) Intel 80386, for MS Windows startTime=2016-02-24 05:58:05.151123+00
CEF HTTP Malware Event Notification Example
Dec 31 16:43:47 10-3 2016-12-26 18:06:52.333023+00 tap0.test.JATP.net CEF:0|JATP|Cortex|3.6.0.12|http|TROJAN_FAREIT.DC|10|13405 lastActivityTime=2016-12-26 18:06:52.333023+00 src=172.16.0.1 dst=10.1.1.44 fileHash=6ff61bec9baa970df54c69fbef1209004a01f068 fileName=e309ea0c7271f3845d86621717220479.bin fileType=PE32 executable (GUI) Intel 80386, for MS Windows startTime=2016-12-26 18:06:52.333023+00
LEEF Event Examples
LEEF log for Download
<134>Sep 24 16:23:36 ovf-core.eng.ovf-core.com LEEF:1.0|Cyphort|Cortex|5.0.4.16|http|src=172.16.1.101 dst=172.16.1.105 usrName= devTime=2018-09-24 16:23:36 PDT cat=malware devTimeFormat=yyyy-MM-dd HH:mm:ss z sev=10 dst_hostname= src_hostname= src_username= incidentId=2614 eventId=80543 fileHash=a1e6d991e4464e7c018182951faa468c42ca3937 fileType=Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1251, Author: Jonh Deddi, Last Saved By: Jonh Deddi, Name of Creating Application: Microsoft Excel, Create Time/Date: Mon Aug 24 23:23:16 2015, Last Saved Time/Date: Tue Aug 25 11:54:39 2015, Security: 0 fileName=61646e7802b449ee02f7269129079829b5eae37c0b934b40475f1f0e94409ad4 malwareName=HEUR_MACRO fileHashMd5=7aeea812c00fcf77d4214f430078e3c4 LEEF log for 3rd party log ingestion (Virus scan log from Symantec)
LEEF log for 3rd party log ingestion (Virus scan log from Symantec)
<134>Sep 24 14:23:41 ovf-core.eng.ovf-core.com LEEF:1.0|Cyphort|Cortex|5.0.4.16|third_party|src= dst=169.254.31.242 usrName=Administrator devTime=2018-09-24 14:23:41 PDT cat=malware devTimeFormat=yyyy-MM-dd HH:mm:ss z sev=3 dst_hostname= src_hostname= src_username= incidentId=2613 eventId=80517 malwareName=Virus Scan
LEEF for email with both phishing links and also a malicious attachment
<134>Sep 12 12:27:24 ovf-core.eng.ovf-core.com LEEF:1.0|Cyphort|Cortex|5.0.4.12|email|src= dst= usrName= devTime=2018-09-12 12:27:24 PDT cat=malware devTimeFormat=yyyy-MM-dd HH:mm:ss z sev=10 url=http://www.two-of-us.at/images/W.exe http://lm.beilequ.com/update/365/365weatherIns_61.rar http://abc.adamoads.com/fda dst_hostname= src_hostname= src_username= src_email_id=kalyan@cyphort.com dst_email_id=jane.doe@cydevel.com incidentId=2531 eventId=78703 fileHash=1f0b0376c0f39b33673363d61294abfaab9fb837 fileType=Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 936, Title: PowerPoint Presentation, Last Saved By: MC SYSTEM, Revision Number: 5, Name of Creating Application: Microsoft PowerPoint, Total Editing Time: 01:28, Last Saved Time/Date: Sat Sep 29 04:42:55 2007, Number of Words: 2 malwareName=EXPLOIT_OFFICE_XDS email_msg_id=CABo8cN_mCTN5XAL+G=C4OcVXry7eiKm4uctkguf2Lqvv_KfWrg@mail.gmail.com fileHashMd5=17e9e5a4c807f3d2d50ba512542c982c