""ET MOBILE_MALWARE Android Vultr Checkin""

SID: 2033730

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Mobile_Client, created_at 2021_08_13, updated_at 2024_03_21, mitre_tactic_id TA0037, mitre_tactic_name Command_And_Control, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel

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: "/grpc.Rpc/Registration"

  • Value: "User-Agent|3a 20|grpc-java-okhttp/"

  • Value: !"Referer|3a 20|"

Within:

PCRE:

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

  • http_header

source