""ET WEB_CLIENT PDF Name Representation Obfuscation of /Subtype""
SID: 2011528
Revision: 6
Class Type: bad-unknown
Metadata: affected_product Web_Browsers, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2010_09_22, deployment Perimeter, signature_severity Major, tag Web_Client_Attacks, updated_at 2012_04_16
Reference:
Protocol: tcp
Source Network: $EXTERNAL_NET
Source Port: $HTTP_PORTS
Destination Network: $HOME_NET
Destination Port: any
Flow: established,to_client
Contents:
-
Value: "PDF-"
-
Value: "/"
-
Value: !"Subtype"
-
Value: "#"
Within: 19
PCRE: "/\x2F(?!Subtype)(S|#53)(u|#75)(b|#62)(t|#74)(y|#79)(p|#70)(e|#65)/"
Special Options:
- file_data