""ET SHELLCODE Possible UTF-16 %u9090 NOP SLED""

SID: 2012111

Revision: 3

Class Type: shellcode-detect

Metadata: created_at 2010_12_28, tag possible_exploitation, updated_at 2013_08_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: "%u9090%u"

Within:

PCRE: "/^[a-f0-9]{4}/Ri"

Special Options:

  • nocase

source