""ET TROJAN DNSMessenger Payload (TXT base64 gzip header)""

SID: 2024840

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 2017_10_13, deployment Perimeter, malware_family DNSMessenger, performance_impact Moderate, signature_severity Major, updated_at 2017_10_13

Reference:

Protocol: udp

Source Network: any

Source Port: 53

Destination Network: $HOME_NET

Destination Port: any

Flow:

Contents:

  • Value: "|00 10 00 01|"

  • Value: "H4sIA"

Within: 5

PCRE:

Special Options:

  • fast_pattern

source