""ET TROJAN Unk Spam Bot Template 1 Active - Outbound Malicious Email Spam""

SID: 2028892

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_10_21, deployment Perimeter, performance_impact Low, signature_severity Major, tag SpamBot, updated_at 2019_10_21

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: 25

Flow: established,to_server

Contents:

  • Value: "Subject|3a 20|"

  • Value: ".scr|22 0d 0a 0d 0a|TVqQ"

Within:

PCRE: "/^(?:Cek\x20This|miss\x20[A-Za-z0-9]{2,20}|[A-Za-z0-9]{2,20}Porn)\r\n/R"

Special Options:

  • fast_pattern

source