""ET TROJAN KrustyLoader CnC Domain in DNS Lookup (ahha-asset .s3 .ap-northeast-2 .amazonaws .com)""
SID: 2050645
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: "|0a|ahha-asset|02|s3|0e|ap-northeast-2|09|amazonaws|03|com|00|"
Within: 44
PCRE:
Special Options:
-
fast_pattern
-
nocase