""ET TROJAN Cobalt Strike CnC Domain (020 .57thandnormal .com) in DNS Lookup""

SID: 2043988

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_25, deployment Perimeter, malware_family Cobalt_Strike, performance_impact Low, signature_severity Major, updated_at 2023_01_25

Reference:

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: "|03|020|0d|57thandnormal|03|com|00|"

Within: 23

PCRE:

Special Options:

  • nocase

  • fast_pattern

source