""ET TROJAN Linux.Mumblehard Initial Checkin""

SID: 2021051

Revision: 5

Class Type: trojan-activity

Metadata: created_at 2015_05_04, updated_at 2015_05_14

Reference:

• md5

• 86f0b0b74fe8b95b163a1b31d76f7917

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

• Value: "GET"

• Value: "User-Agent|3a 20|Mozilla/5.0 (Windows NT 6.1|3b| rv|3a|7.0.1) Gecko/20100101 Firefox/7.0.1"

Within:

PCRE: "/^Host\x3a (?:\d{1,3}.){3}\d{1,3}\r\nUser-Agent\x3a[^\r\n]+?\r\nAccept\x3a[^\r\n]+?\r\nAccept-Language\x3a[^\r\n]+?\r\nAccept-Encoding\x3a[^\r\n]+?\r\nAccept-Charset\x3a[^\r\n]+?\r\nConnection\x3a close(?:\r\n)*$/Hi"

Special Options:

• http_method

source