Snort - Network Intrusion Detection & Prevention System

Talos Rules 2021-04-22

This release adds and modifies rules in several categories.

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

For information about Snort Subscriber Rulesets available for purchase, please visit the Snort product page.

Change logs

29171

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091701.

The format of the file is:

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

New Rules:


 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29170

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091700.

The format of the file is:

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

New Rules:


 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29161

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091601.

The format of the file is:

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

New Rules:


 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)

Modified Rules:

29160

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29151

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29150

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29141

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)

Modified Rules:

29130

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

29111

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)

Modified Rules:

3000

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (snort3-server-other.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (snort3-malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (snort3-malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (snort3-malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (snort3-malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (snort3-malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (snort3-malware-backdoor.rules)
 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (snort3-malware-backdoor.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (snort3-malware-backdoor.rules)

Modified Rules:

2983

2021-04-22 16:06:36 UTC

Snort Subscriber Rules Update

Date: 2021-04-22

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:


 * 1:57461 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.PULSECHECK variant cnc connection (malware-backdoor.rules)
 * 1:57468 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57464 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.HARDPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57466 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.ATRIUM variant inbound cnc connection (malware-backdoor.rules)
 * 1:57463 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57460 <-> DISABLED <-> SERVER-OTHER dnsmasq PX record response heap overflow attempt (server-other.rules)
 * 1:57465 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE variant inbound cnc connection (malware-backdoor.rules)
 * 1:57462 <-> DISABLED <-> MALWARE-BACKDOOR Perl.Backdoor.STEADYPULSE webshell variant access (malware-backdoor.rules)
 * 1:57467 <-> ENABLED <-> MALWARE-BACKDOOR Perl.Backdoor.SLIGHTPULSE variant inbound cnc connection (malware-backdoor.rules)