""ET TROJAN Hawkeye Keylogger SMTP Beacon""

SID: 2021871

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2015_09_30, deployment Perimeter, signature_severity Major, tag c2, updated_at 2016_05_26, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

Reference:

  • md5

  • dfc2c23663122ac9fc25b708f278c147

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,587]

Flow: established,to_server

Contents:

  • Value: "Subject|3a 20|"

  • Value: "SGF3a0V5ZSBLZXlsb2dnZXIg"

Within: 45

PCRE:

Special Options:

source