""ET TROJAN Win32/Detplock Checkin via SMTP""

SID: 2031608

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 2021_02_08, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_02_08

Reference:

  • md5

  • 6ac14ccd294d75e340d48d19aa74be09

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,26,587]

Flow: established,to_server

Contents:

  • Value: "Subject|3a 20|Virus Infection Monitor|0d 0a|"

  • Value: "Content|2d|type|3a 20|multipart|2f|mixed|3b 20|boundary|3d 22 23|BOUNDARY|23 22 0d 0a|"

Within:

PCRE:

Special Options:

source