""ET TROJAN Bitter APT AlmondRAT CnC Checkin""

SID: 2037717

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2022_07_07, deployment Perimeter, malware_family AlmondRAT, performance_impact Low, signature_severity Major, updated_at 2022_07_07

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|00 2a 00|"

  • Value: "|2a 00|W|00|i|00|n|00|d|00|o|00|w|00|s|00 20 00|"

Within:

PCRE: "/^(?:[A-F0-9]\x00){12}/R"

Special Options:

  • fast_pattern

source