""ET TROJAN Win32/Gamaredon CnC Activity (POST) M4""

SID: 2044919

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_11, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2023_04_11

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "user|2d|agent|3a 20 28|macintosh|3b 20|intel|20|mac|20|os|20|x|20|10|5f|15|5f|6|29 20|applewebkit|2f|605|2e|1|2e|15|20 28|khtml|2c 20|like|20|gecko|29 20|version|2f|14|2e|0|2e|1|20|safari|2f|605|2e|1|2e|15|0d 0a|"

  • Value: "Content-Length|3a 20|0|0d 0a|"

  • Value: "Accept|3a 20|application|2f|dns|2d|json|0d 0a|"

  • Value: "Host|3a 20|t.me|0d 0a|"

  • Value: !"Referer"

Within:

PCRE:

Special Options:

  • http_method

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source