""ET TROJAN Win32/RecordBreaker CnC Checkin - Server Response""

SID: 2036955

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 2022_06_09, deployment Perimeter, malware_family RecordBreaker, performance_impact Low, signature_severity Major, updated_at 2022_06_09

Reference:

  • md5

  • f75f596f7a0369717476f304eef7fe9b

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "200"

  • Value: "libs_"

  • Value: ".dll"

  • Value: "sstmnfo_System Info.txt|3a|"

  • Value: "token|3a|"

Within:

PCRE: "/^[a-f0-9]{32}/R"

Special Options:

  • http_stat_code

  • file_data

  • fast_pattern

source