""ET MOBILE_MALWARE Android/MMRAT Data Exfiltration Attempt""

SID: 2048084

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Android, attack_target Client_Endpoint, created_at 2023_09_13, deployment Perimeter, malware_family MMRAT, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_09_13, reviewed_at 2023_09_13

Reference:

  • md5

  • 5b90ee49ed678379f1a8be9683b3fc99

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: "/system/apps"

  • Value: "Authorization|3a 20|Bearer"

  • Value: "User-Agent|3a 20|okhttp/"

  • Value: "|7b 22|deviceId|22 3a 22|" Depth: 13

  • Value: "|22 2c 22|appInfos|22 3a 5b 7b 22|packageName|22 3a 22|"

Within:

PCRE: "/^\x7b\x22deviceId\x22\x3a\x22[a-f0-9]{16}/P"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_header

  • http_client_body

  • http_client_body

  • fast_pattern

source