""ET TROJAN Win32/MALWARECAT Exfil via SMTP""

SID: 2032271

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_03_22, deployment Perimeter, signature_severity Major, updated_at 2021_03_22

Reference:

  • md5

  • bc45f9e3b0a681fb7bc08dbf3c44bcf3

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "Subject|3a 20|MALWARECAT"

Within:

PCRE:

Special Options:

  • fast_pattern

source