""ET TROJAN MSIL/CoalaBot CnC Activity""

SID: 2024531

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_08_09, deployment Perimeter, malware_family CoalaBot, performance_impact Moderate, signature_severity Major, updated_at 2017_09_23

Reference:

  • md5

  • 523de838dd44cdd6f212d36c142d830c

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: ".php"

  • Value: "User-Agent|3a|"

  • Value: "KAMA NT"

  • Value: "BULLET|3b|"

  • Value: "REGION|3b|"

  • Value: !"Referer|3a|"

  • Value: !"Accept"

Within: 20

PCRE: "/^[A-Za-z0-9]{10,}[-)(]{1,2}/Pi"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source