""ET TROJAN FlawedGrace CnC Activity""

SID: 2026773

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 2017_11_01, deployment Perimeter, signature_severity Major, updated_at 2018_10_16

Reference:

  • md5

  • 2b1215fb65d33fc6206ab227a3b7e75a

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: to_server,established

Contents:

  • Value: "|47 43 52 47|" Depth: 4 Offset: 4

Within:

PCRE:

Special Options:

source