""ET TROJAN Win32/Bisonal Backdoor CnC Domain in DNS Lookup""

SID: 2033963

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_09_16, deployment Perimeter, malware_family Bisonal, performance_impact Low, signature_severity Major, updated_at 2021_09_16

Reference:

  • md5

  • 60490ea995531924f77af5f1bfb38eec

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: "|0a|ergencucur|03|com"

Within: 7

PCRE:

Special Options:

  • nocase

source