""ET TROJAN ServHelper RAT CnC Domain Observed in SNI""

SID: 2026768

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_11_13, deployment Perimeter, malware_family ServHelper, performance_impact Low, signature_severity Major, tag RAT, updated_at 2019_01_14

Reference:

• md5

• 43e7274b6d42aef8ceae298b67927aec

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

• Value: "|00 00 0e|arhidsfderm.pw"

Within:

PCRE:

Special Options:

• nocase

source