""ET TROJAN Win32/Kumquat Loader Activity (Connect)""

SID: 2044066

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_02_02, deployment Perimeter, malware_family Kumquat, confidence High, signature_severity Major, tag TA416, updated_at 2023_10_11, reviewed_at 2024_04_09

Reference:

  • md5

  • bff4ce3dbda522e92970c5d1d0471e63

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: any

Flow: established,to_server

Contents:

  • Value: "MQIsdp|03|" Depth: 7 Offset: 4

  • Value: "|00 26|"

Within: 2

PCRE: "/^{(?:[0-9a-f]{8})-(?:[0-9a-f]{4})-(?:[0-9a-f]{4})-(?:[0-9a-f]{4})-(?:[0-9a-f]{12})}$/R"

Special Options:

  • fast_pattern

source