""ET TROJAN Possible IceRat CnC Acitivty""

SID: 2031485

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_01_06, deployment Perimeter, malware_family IceRAT, signature_severity Major, updated_at 2021_01_06

Reference:

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: "/dow_" Depth: 5

  • Value: ".txt"

  • Value: "User-Agent|3a 20|Java/"

Within:

PCRE: "/.txt$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

source