""ET TROJAN Possible XWorm Payload Downloaded via Powershell""

SID: 2052559

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_13, deployment Perimeter, malware_family Xworm, confidence Medium, signature_severity Major, updated_at 2024_05_13

Reference:

• md5

• 06d67e7ce5da7db9ea51628b633b5322

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

• Value: "GET"

• Value: "Xworm.exe"

• Value: "WindowsPowerShell/"

Within:

PCRE: "/User-Agent\x3a\x20[^\r\n]+WindowsPowerShell\//Hmi"

Special Options:

• http_method

• http_uri

• nocase

• fast_pattern

• http_header

source