""ET WEB_CLIENT Suspicious VBS Encoding Observed in BottleEK""
SID: 2029125
Revision: 2
Class Type: bad-unknown
Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_12_12, deployment Perimeter, signature_severity Major, updated_at 2019_12_12
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "application/octet-stream"
-
Value: "Execute chr(" Depth: 12
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
-
Value: "CLng(&H"
-
Value: "))&chr("
Within: 7
PCRE: "/^[A-F0-9]+/R"
Special Options:
-
http_header
-
file_data
-
fast_pattern