VRT Rules 2015-04-09
This release adds and modifies rules in several categories.

Talos has added and modified multiple rules in the exploit-kit, file-other, malware-cnc, os-windows, protocol-dns, server-apache and server-webapp rule sets to provide coverage for emerging threats from these technologies.

Change logs

2015-04-09 19:39:17 UTC

Snort Subscriber Rules Update

Date: 2015-04-09

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2962.

The format of the file is:

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

New Rules:


 * 1:34055 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34052 <-> ENABLED <-> MALWARE-CNC Win.Trojan.NewPos outbound connection (malware-cnc.rules)
 * 1:34054 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34050 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.Nepigon variant outbound connection attempt (malware-cnc.rules)
 * 1:34053 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34049 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.EvilBunny variant outbound connection attempt (malware-cnc.rules)
 * 1:34056 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34048 <-> DISABLED <-> SERVER-APACHE Apache mod_log_config cookie handling denial of service attempt (server-apache.rules)
 * 1:34057 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 1:34047 <-> ENABLED <-> MALWARE-CNC Win.Trojan.VBPasswordStealer variant outbound connection (malware-cnc.rules)
 * 1:34058 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 3:34051 <-> ENABLED <-> PROTOCOL-DNS Cisco ASA memory exhaustion denial of service attempt (protocol-dns.rules)

Modified Rules:


 * 1:29800 <-> DISABLED <-> FILE-OTHER XML exponential entity expansion attack attempt (file-other.rules)
 * 1:29443 <-> ENABLED <-> EXPLOIT-KIT Fiesta exploit kit outbound connection attempt (exploit-kit.rules)
 * 3:32106 <-> ENABLED <-> SERVER-OTHER Cisco ASA SCPS command injection attempt (server-other.rules)

2015-04-09 19:39:17 UTC

Snort Subscriber Rules Update

Date: 2015-04-09

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2970.

The format of the file is:

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

New Rules:


 * 1:34055 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34056 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34054 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34052 <-> ENABLED <-> MALWARE-CNC Win.Trojan.NewPos outbound connection (malware-cnc.rules)
 * 1:34050 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.Nepigon variant outbound connection attempt (malware-cnc.rules)
 * 1:34049 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.EvilBunny variant outbound connection attempt (malware-cnc.rules)
 * 1:34047 <-> ENABLED <-> MALWARE-CNC Win.Trojan.VBPasswordStealer variant outbound connection (malware-cnc.rules)
 * 1:34053 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34048 <-> DISABLED <-> SERVER-APACHE Apache mod_log_config cookie handling denial of service attempt (server-apache.rules)
 * 1:34058 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 1:34057 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 3:34051 <-> ENABLED <-> PROTOCOL-DNS Cisco ASA memory exhaustion denial of service attempt (protocol-dns.rules)

Modified Rules:


 * 1:29800 <-> DISABLED <-> FILE-OTHER XML exponential entity expansion attack attempt (file-other.rules)
 * 1:29443 <-> ENABLED <-> EXPLOIT-KIT Fiesta exploit kit outbound connection attempt (exploit-kit.rules)
 * 3:32106 <-> ENABLED <-> SERVER-OTHER Cisco ASA SCPS command injection attempt (server-other.rules)

2015-04-09 19:39:17 UTC

Snort Subscriber Rules Update

Date: 2015-04-09

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2972.

The format of the file is:

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

New Rules:


 * 1:34058 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 1:34057 <-> ENABLED <-> OS-WINDOWS Microsoft Windows SChannel CertificateVerify buffer overflow attempt (os-windows.rules)
 * 1:34056 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34055 <-> DISABLED <-> SERVER-WEBAPP Lexmark Markvision Enterprise LibraryFileUploadServlet directory traversal attempt (server-webapp.rules)
 * 1:34054 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34053 <-> DISABLED <-> SERVER-OTHER PHP unserialize and __wakeup use after free attempt (server-other.rules)
 * 1:34052 <-> ENABLED <-> MALWARE-CNC Win.Trojan.NewPos outbound connection (malware-cnc.rules)
 * 1:34050 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.Nepigon variant outbound connection attempt (malware-cnc.rules)
 * 1:34049 <-> ENABLED <-> MALWARE-CNC Win.Backdoor.EvilBunny variant outbound connection attempt (malware-cnc.rules)
 * 1:34048 <-> DISABLED <-> SERVER-APACHE Apache mod_log_config cookie handling denial of service attempt (server-apache.rules)
 * 1:34047 <-> ENABLED <-> MALWARE-CNC Win.Trojan.VBPasswordStealer variant outbound connection (malware-cnc.rules)
 * 3:34051 <-> ENABLED <-> PROTOCOL-DNS Cisco ASA memory exhaustion denial of service attempt (protocol-dns.rules)

Modified Rules:


 * 1:29443 <-> ENABLED <-> EXPLOIT-KIT Fiesta exploit kit outbound connection attempt (exploit-kit.rules)
 * 1:29800 <-> DISABLED <-> FILE-OTHER XML exponential entity expansion attack attempt (file-other.rules)
 * 3:32106 <-> ENABLED <-> SERVER-OTHER Cisco ASA SCPS command injection attempt (server-other.rules)