Talos Rules 2020-04-16
This release adds and modifies rules in several categories.

Cisco Talos has discovered a new malware campaign based on a previously unknown family we're calling "PoetRAT." At this time, we do not believe this attack is associated with an already known threat actor. https://blog.talosintelligence.com/2020/04/poetrat-covid-19-lures.html. Snort rules 53689-53691 will cover this.

Talos also has added and modified multiple rules in the browser-other, malware-cnc and server-webapp rule sets to provide coverage for emerging threats from these technologies.

Change logs

2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091600.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091501.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091500.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091401.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091300.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091101.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3000.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (snort3-server-webapp.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (snort3-server-webapp.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (snort3-malware-cnc.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (snort3-malware-other.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (snort3-malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (snort3-malware-other.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (snort3-malware-cnc.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (snort3-malware-cnc.rules)

Modified Rules:



2020-04-16 20:46:57 UTC

Snort Subscriber Rules Update

Date: 2020-04-16

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2983.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


 * 1:53688 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53693 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53689 <-> ENABLED <-> MALWARE-CNC Win.Malware.PoetRat malware variant FTP login (malware-cnc.rules)
 * 1:53690 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53687 <-> DISABLED <-> SERVER-WEBAPP Adobe Experience Manager server side request forgery attempt (server-webapp.rules)
 * 1:53694 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 1:53691 <-> DISABLED <-> MALWARE-OTHER Win.Trojan.PoetRAT malicious document download attempt (malware-other.rules)
 * 1:53692 <-> ENABLED <-> MALWARE-CNC Win.Ransomware.Hiddentears variant outbound connection (malware-cnc.rules)
 * 3:53686 <-> ENABLED <-> BROWSER-OTHER TRUFFLEHUNTER TALOS-2020-1055 attack attempt (browser-other.rules)

Modified Rules: