""ET TROJAN Win32/MassLogger FTP Data Exfiltration""

SID: 2037021

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_06_16, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_06_16

Reference:

  • md5

  • b044aefa2e42d7efadf53394442fcca6

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "|3c 7c 7c 20 20|v" Depth: 6

  • Value: "|20 7c 7c 3e|"

  • Value: "User Name|3a 20|"

  • Value: "Windows OS|3a 20|"

  • Value: "MassLogger Started|3a 20|"

  • Value: "Interval|3a 20|"

  • Value: "MassLogger Process|3a 20|"

Within:

PCRE:

Special Options:

  • fast_pattern

source