Talos Rules 2016-04-28
This release adds and modifies rules in several categories.

Talos has added and modified multiple rules in the browser-ie, file-flash, file-office, indicator-obfuscation, malware-cnc, malware-other, protocol-dns and server-other rule sets to provide coverage for emerging threats from these technologies.

Change logs

2016-04-28 14:30:24 UTC

Snort Subscriber Rules Update

Date: 2016-04-28

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2976.

The format of the file is:

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

New Rules:


 * 1:38661 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38629 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38630 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38631 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38642 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP 301 response evasion attempt (indicator-obfuscation.rules)
 * 1:38641 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid header line evasion attempt (indicator-obfuscation.rules)
 * 1:38637 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP response code evasion attempt (indicator-obfuscation.rules)
 * 1:38633 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38665 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38662 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38632 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38635 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38634 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38663 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38664 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38636 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38638 <-> ENABLED <-> MALWARE-CNC Win.Trojan.GozNym variant outbound connection (malware-cnc.rules)
 * 1:38639 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38640 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38643 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38644 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38645 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38646 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38647 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38648 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38649 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38667 <-> DISABLED <-> INDICATOR-OBFUSCATION Mixed case encoding type evasion attempt (indicator-obfuscation.rules)
 * 1:38651 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38652 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38653 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38654 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38657 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38656 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38655 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38658 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38666 <-> DISABLED <-> INDICATOR-OBFUSCATION HTTP header invalid entry evasion attempt (indicator-obfuscation.rules)
 * 1:38650 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38660 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38659 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)

Modified Rules:


 * 1:37730 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo A record stack buffer overflow attempt (protocol-dns.rules)
 * 1:37596 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:38341 <-> DISABLED <-> INDICATOR-OBFUSCATION Multiple Encodings header evasion attempt (indicator-obfuscation.rules)
 * 1:37731 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo AAAA record stack buffer overflow attempt (protocol-dns.rules)
 * 1:37597 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:17518 <-> DISABLED <-> PROTOCOL-FTP FlashGet PWD command stack buffer overflow attempt (protocol-ftp.rules)

2016-04-28 14:30:24 UTC

Snort Subscriber Rules Update

Date: 2016-04-28

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2980.

The format of the file is:

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

New Rules:


 * 1:38642 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP 301 response evasion attempt (indicator-obfuscation.rules)
 * 1:38641 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid header line evasion attempt (indicator-obfuscation.rules)
 * 1:38637 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP response code evasion attempt (indicator-obfuscation.rules)
 * 1:38633 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38629 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38630 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38632 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38631 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38634 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38635 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38636 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38638 <-> ENABLED <-> MALWARE-CNC Win.Trojan.GozNym variant outbound connection (malware-cnc.rules)
 * 1:38639 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38640 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38643 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38644 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38645 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38646 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38647 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38648 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38649 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38650 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38651 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38652 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38653 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38654 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38655 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38656 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38657 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38658 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38667 <-> DISABLED <-> INDICATOR-OBFUSCATION Mixed case encoding type evasion attempt (indicator-obfuscation.rules)
 * 1:38666 <-> DISABLED <-> INDICATOR-OBFUSCATION HTTP header invalid entry evasion attempt (indicator-obfuscation.rules)
 * 1:38665 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38664 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38661 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38662 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38663 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38659 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38660 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)

Modified Rules:


 * 1:37597 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:37730 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo A record stack buffer overflow attempt (protocol-dns.rules)
 * 1:38341 <-> DISABLED <-> INDICATOR-OBFUSCATION Multiple Encodings header evasion attempt (indicator-obfuscation.rules)
 * 1:37731 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo AAAA record stack buffer overflow attempt (protocol-dns.rules)
 * 1:37596 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:17518 <-> DISABLED <-> PROTOCOL-FTP FlashGet PWD command stack buffer overflow attempt (protocol-ftp.rules)

2016-04-28 14:30:24 UTC

Snort Subscriber Rules Update

Date: 2016-04-28

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2982.

The format of the file is:

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

New Rules:


 * 1:38667 <-> DISABLED <-> INDICATOR-OBFUSCATION Mixed case encoding type evasion attempt (indicator-obfuscation.rules)
 * 1:38666 <-> DISABLED <-> INDICATOR-OBFUSCATION HTTP header invalid entry evasion attempt (indicator-obfuscation.rules)
 * 1:38665 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38664 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38663 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38662 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38661 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38660 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38659 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38658 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38657 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38656 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38655 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38654 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38653 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38652 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38651 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38650 <-> ENABLED <-> MALWARE-OTHER PWOBot variant download attempt (malware-other.rules)
 * 1:38649 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38648 <-> DISABLED <-> SERVER-OTHER Trend Micro remote debugging URL handling remote code execution attempt (server-other.rules)
 * 1:38647 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38646 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38645 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38644 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38643 <-> ENABLED <-> MALWARE-CNC Win.Trojan.Jadowndec outbound connection attempt (malware-cnc.rules)
 * 1:38642 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP 301 response evasion attempt (indicator-obfuscation.rules)
 * 1:38641 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid header line evasion attempt (indicator-obfuscation.rules)
 * 1:38640 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38639 <-> ENABLED <-> FILE-OFFICE Microsoft Office document with auto-start VBA macro detected (file-office.rules)
 * 1:38638 <-> ENABLED <-> MALWARE-CNC Win.Trojan.GozNym variant outbound connection (malware-cnc.rules)
 * 1:38637 <-> DISABLED <-> INDICATOR-OBFUSCATION Invalid HTTP response code evasion attempt (indicator-obfuscation.rules)
 * 1:38636 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38635 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38634 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38633 <-> ENABLED <-> FILE-FLASH Nuclear exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38632 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38631 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38630 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)
 * 1:38629 <-> ENABLED <-> FILE-FLASH Angler exploit kit Adobe Flash SWF exploit download (file-flash.rules)

Modified Rules:


 * 1:17518 <-> DISABLED <-> PROTOCOL-FTP FlashGet PWD command stack buffer overflow attempt (protocol-ftp.rules)
 * 1:37596 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:37597 <-> ENABLED <-> BROWSER-IE Microsoft Internet Explorer CTextBlock use-after-free attempt (browser-ie.rules)
 * 1:37730 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo A record stack buffer overflow attempt (protocol-dns.rules)
 * 1:37731 <-> DISABLED <-> PROTOCOL-DNS glibc getaddrinfo AAAA record stack buffer overflow attempt (protocol-dns.rules)
 * 1:38341 <-> DISABLED <-> INDICATOR-OBFUSCATION Multiple Encodings header evasion attempt (indicator-obfuscation.rules)