""ET TROJAN DNS Query to ClearFake Domain (businessresources .ltd)""

SID: 2053412

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2024_06_10, deployment Perimeter, malware_family ClearFake, signature_severity Major, updated_at 2024_06_10

Reference:

  • md5

  • b3b735852084909f82121fd6fbbdeb68

Protocol: udp

Source Network: $HOME_NET

Source Port: any

Destination Network: any

Destination Port: 53

Flow:

Contents:

  • Value: "|01|" Depth: 1 Offset: 2

  • Value: "|00 01 00 00 00 00 00|"

  • Value: "|11|businessresources|03|ltd|00|"

Within: 7

PCRE:

Special Options:

  • fast_pattern

  • nocase

source