""ET TROJAN KrustyLoader CnC Domain in DNS Lookup (bigtimeassets .s3 .amazonaws .com)""
SID: 2050640
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Linux, affected_product Ivanti, attack_target Networking_Equipment, created_at 2024_01_31, deployment Perimeter, malware_family KrustyLoader, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_01_31
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: "|0d|bigtimeassets|02|s3|09|amazonaws|03|com|00|"
Within: 32
PCRE:
Special Options:
-
fast_pattern
-
nocase