""ET TROJAN Downloaded .PNG With Embedded File (.sh)""
SID: 2037811
Revision: 2
Class Type: trojan-activity
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_07_22, deployment Perimeter, signature_severity Major, updated_at 2023_04_04
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "|0d 0a|Content-Type|3a 20|image/png"
-
Value: "|89 50 4E 47 0D 0A 1A 0A|" Depth: 8
-
Value: "|00 00 00 00 49 45 4E 44 AE 42 60 82 23 21 2f|bin|2f|sh"
Within:
PCRE:
Special Options:
-
http_header
-
file_data