""ET TROJAN APT/Sidewinder CnC Domain in DNS Lookup (afcat .xyz)""

SID: 2034877

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2022_01_10, deployment Perimeter, malware_family Sidewinder, signature_severity Major, updated_at 2022_01_10

Reference:

  • md5

  • e7c7916f7bf0ddc511466ce106137e66

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: "|05|afcat|03|xyz|00|"

Within: 11

PCRE:

Special Options:

  • nocase

  • fast_pattern

source