""ET CHAT Yahoo IM voicechat""

SID: 2001254

Revision: 7

Class Type: policy-violation

Metadata: created_at 2010_07_30, updated_at 2010_08_27

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: from_server,established

Contents:

  • Value: "YMSG" Depth: 4

  • Value: "|00|J" Depth: 2 Offset: 10

Within:

PCRE:

Special Options:

  • nocase

source