""ET TROJAN Clipboard Monitor Data Exfiltration Attempt""

SID: 2052932

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_05_28, deployment Perimeter, deployment SSLDecrypt, malware_family Clipboard_Monitor, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_05_28

Reference:

  • md5

  • 545bb77b4d2ef3e5f6c29da6133dbdf3

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "|7b 22|data|22 3a 22|" Depth: 9

  • Value: "application/json"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/content-type\x3a\x20[^\r\n]+\r\naccept\x3a\x20[^\r\n]+\r\nhost\x3a\x20[^\r\n]+\r\ncontent-legnth\x3a\x20[^\r\n]+\r\n\r\n/Hmi"

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_header

  • http_header

  • http_header

source