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Zemana Antilogger 1.9.2 DoS attack



Severity: Critical
Title: Zemana Antilogger: Denial of Service
Date: May 30, 2009
Vers:1.9.2.102
ID: 200905-30
StreAmeR - 2009

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Synopsis
========

A vulnerability has been discovered in Zemana Antilogger, allowing for a Denial
of Service.

Background
==========

Zemana AntiLogger has a new, powerful way to protect your PC from malware attacks.

Affected packages
=================
Vers:1.9.2.102 and old versions.

Description
===========
Attempts to terminate the process by sending Close messages (called WM_CLOSE and SC_CLOSE) to all windows in the target process. This method only works if 1) the target process has at least one window, and 2) the target process doesn't handle the WM_CLOSE/SC_CLOSE message .


Impact
======

Attacker could send specially crafted messages to the windows of the target process,
resulting in a crash.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

No current solution.