""ET TROJAN Remcos 3.x Unencrypted Checkin""

SID: 2032776

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_16, deployment Perimeter, malware_family Remcos, performance_impact Low, signature_severity Major, updated_at 2021_04_16

Reference:

  • md5

  • d27f70216d11b769c937a961fc1b1c81

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|24 04 ff 00|" Depth: 4

  • Value: "|4b 00 00 00|"

  • Value: "|7c 1e 1e 1f 7c|"

Within: 4

PCRE:

Special Options:

  • fast_pattern

source