""ET TROJAN Suspected Kapeka/ICYWELL Backdoor Server Response (write to file)""
SID: 2052174
Revision: 1
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_04_19, deployment Perimeter, deployment SSLDecrypt, malware_family SANDWORM, malware_family APT44, confidence Medium, signature_severity Major, tag RAT, updated_at 2024_04_19
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "|3a 20 22|Write|20|to|20|file|22|,"
-
Value: "|3a 20 22|C|3a 2f 2f|"
Within:
PCRE:
Special Options:
-
file_data
-
fast_pattern