""ET TROJAN IRC Potential bot scan/exploit command""

SID: 2002030

Revision: 16

Class Type: trojan-activity

Metadata: created_at 2010_07_30, updated_at 2011_10_21

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: any

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "PRIVMSG|20|" Depth: 8

  • Value: "|3a|"

Within: 30

PCRE: "/(ntscan [0-9]{1,4} [0-9]{1,4}|dcom.self|scan.(start|stop)|scan ([0-9]{1,3}.[0-9]{1,3})|(advscan|exploited|asc|xscan|xploit|adv.start) (webdav|netbios|ntpass|dcom(2|135|445|1025)|mssql|lsass|optix|upnp|dcass|beagle[12]|mydoom|netdevil|DameWare|kuang2|sub7|iis5ssl|wkssvc|wks1|mysql|wkssvcOth|wkssvcENG|arkeia|arcserve|wins|veritas|netbackup|asn))/i"

Special Options:

source