""ET TROJAN Malicious lnk Activity""

SID: 2032891

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_04_29, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, updated_at 2021_04_29

Reference:

  • md5

  • 57f02fe8fa9d096e5ac9b6c9be66f05b

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "ExpandEnvironmentStrings|28 22 25|Temp|25 5c|MaGiaiNenNe.txt|22 29|"

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source