""ET TROJAN MICROPSIA Sending JPG Screenshot to CnC with .his Extension""

SID: 2026550

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_10_24, deployment Perimeter, malware_family MICROPSIA, performance_impact Low, signature_severity Major, updated_at 2018_10_24

Reference:

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: "name=|22|kerna|22 3b 20|filename"

  • Value: ".his|22 0d 0a|"

  • Value: "|0d 0a 0d 0a ff d8 ff|"

  • Value: "JFIF"

  • Value: "User-Agent|3a 20|"

  • Value: "compatible|3b 20|Googlebot|2f|"

  • Value: "|0d 0a|"

  • Value: "Content-Type|3a 20|multipart|2f|form-data|3b 20|boundary|3d 2d 2d 2d 2d 2d 2d 2d|Embt-Boundary"

  • Value: "Accept-Encoding|3a 20|UTF8|0d|"

Within: 50

PCRE:

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source