Bugbear Worm Detection

Critical Nessus Plugin ID 11135

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VPR Score: 6.1


The remote host has been compromised.


The BugBear backdoor is listening on this port. An attacker may connect to it to retrieve secret information such as passwords, credit card numbers, etc.

The BugBear worm includes a keylogger and can kill antivirus and firewall software. It propagates through email and open Windows shares.

Depending on the antivirus vendor, it is known as Tanatos, I-Worm.Tanatos, NATOSTA.A, W32/Bugbear-A, Tanatos, W32/[email protected], WORM_BUGBEAR.A, Win32.BugBear...


- Use an Antivirus package to remove it.
- Close your Windows shares
- Update your IE browser See 'Incorrect MIME Header Can Cause IE to Execute E-mail Attachment'

See Also







Plugin Details

Severity: Critical

ID: 11135

File Name: bugbear.nasl

Version: 1.37

Type: remote

Family: Backdoors

Published: 2002/10/03

Updated: 2018/11/15

Dependencies: 17975

Risk Information

Risk Factor: Critical

VPR Score: 6.1

CVSS v2.0

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 2001/03/30

Reference Information

CVE: CVE-2001-0154

BID: 2524

MSFT: MS01-020

MSKB: 290108, 329770