""ET TROJAN ICEFOG-P Variant CnC Checkin M1""

SID: 2027431

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_06_04, deployment Perimeter, malware_family ICEFOG_P, performance_impact Low, signature_severity Major, tag APT, tag IceFog, updated_at 2019_06_04

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: ".jpg"

  • Value: "H|00|O|00|S|00|T|00 20 00|N|00|A|00|M|00|E|00 3a|" Depth: 19

Within:

PCRE: "/_[A-F0-9]{12}.jpg$/Ui"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

source