Check Point Advisories

Update Protections against Recent Malware Threats (19-Jan-09)

Check Point Reference: CPAI-2009-005
Date Published: 19 Jan 2009
Severity: High
Last Updated: Thursday 01 January, 2009
Source: Adware: BHO.gen
Adware: Win32.Mostofate
Adware: Win32 Agent BM
Spyware: WinSpywareProtect
Protection Provided by:
Who is Vulnerable? Microsoft Windows clients
Vulnerability Description Malware is a software designed to infiltrate or damage a computer system without the owner's informed consent. It is a general name for a variety of forms of hostile, intrusive, or annoying programs like Viruses, worms, Adware, Trojans, and spyware that exploit unprotected clients, using network access to intrude upon organizations, destroying or stealing data.

Spyware is computer software that is installed without the user's informed consent on a personal computer to intercept or take partial control over the user's interaction with the computer. Spyware programs can collect various types of personal information, install additional software, redirect Web browser activity, or divert advertising revenue to a third party.

Adware is an advertising-supported software package which automatically plays, displays, or downloads advertising material to a computer after the software is installed on it or while the application is being used.

A Trojan horse is a program that installs malicious software while under the guise of doing something else.  Trojans are known for installing backdoor programs which allow unauthorized non permissible remote access to the victim's machine by unwanted parties with malicious intentions.

Vulnerability DetailsThe update includes new protections against 4 recent malware threats:

Adware: BHO.gen - Adware BHO.gen is a browser hijacker that displays critical alert windows. It also displays random pop-up windows warning users they are infected.

Adware: Win32.Mostofate - Adware Mostofate is an adware toolbar that hijacks the user's browser and redirect the searches and results to its own server. It may also randomly generate pop-up advertisements. 

Adware: Win32 Agent BM - Adware.Win32.Agent.BM is a generic type of Trojan. It causes damage to the machine by infesting themselves with many executables. It adds programs and makes system registry changes as well as contact many spyware and adware related network servers. 

Spyware: WinSpywareProtect - WinSpywareProtect is a rogue anti-spyware application that downloads other malicious code and display misleading and exaggerated reports of threats for the computer. It displays warning messages in the forms of pop-up screens alerting users that their system is infected and attempts to trick users into buying the application.

Protection Overview

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