""ET MALWARE Win32/InstallDisck SMTP Checkin""

SID: 2029186

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 2019_12_20, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2019_12_20

Reference:

  • md5

  • b79640ae0cf9f3ad58b14c15c50f3de3

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,587,465,2525]

Flow: established,to_server

Contents:

  • Value: "Subject: PCInfo:"

  • Value: "

  • User Name:"

  • Value: "PC Name:"

  • Value: "

  • Proxy:"

  • Value: "Gateway:"

Within:

PCRE:

Special Options:

  • fast_pattern

source