""ET TROJAN FIN7 Related CnC Domain in DNS Lookup (bypassociation .com)""

SID: 2033898

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_09_03, deployment Perimeter, signature_severity Major, tag FIN7, updated_at 2021_09_03

Reference:

• Link

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: "|0e|bypassociation|03|com|00|"

Within: 20

PCRE:

Special Options:

• nocase

• fast_pattern

source