""ET CURRENT_EVENTS SUSPICIOUS JAR Download by Java UA with non JAR EXT matches various EKs""

SID: 2016540

Revision: 2

Class Type: bad-unknown

Metadata: created_at 2013_03_06, updated_at 2013_03_07

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: !".jar"

  • Value: "PK"

  • Value: ".class"

Within: 2

PCRE:

Special Options:

  • http_header

  • nocase

  • file_data

  • fast_pattern

source