SID: 2051513

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_06, deployment Perimeter, malware_family Bitter_APT, performance_impact Low, confidence High, signature_severity Major, tag Bitter_APT, tag Malicious_LNK, updated_at 2024_03_06

Reference:

  • md5

  • 10f4479d5f531def842a712277ae9611

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/mml.php"

  • Value: "User-Agent|3a 20|curl/"

Within:

PCRE: "/Host\x3a\x20[^\r\n]+\r\nUser-Agent\x3a\x20[^\r\n]+\r\nAccept\x3a\x20[^\r\n]+\r\n\r\n/Hm"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

source