ThreatExpert Report: Adware.Mirar, Adware.WhenU, not-a-virus:AdWare.Win32.SaveNow.bj, Adware-Mirar

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Submission Summary:

Submission details:

Submission received: 13 May 2008, 23:12:44
Processing time: 4 min 4 sec
Submitted sample:

File MD5: 0xF150B800451A87FF22B14D9B028AAB69
File SHA-1: 0xA1CEDF8B9826CD7AAE274CD989A825542FBA4799
Filesize: 139,264 bytes
Alias:

Adware.Mirar [PCTools]
Adware.WhenU [Symantec]
not-a-virus:AdWare.Win32.SaveNow.bj [Kaspersky Lab]
Adware-Mirar [McAfee]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Adware.Mirar	Mirar is an Internet Explorer toolbar that has been reported to stealth install. Adware, remove unless you installed for a purpose.

Attention! The following threat category was identified:

Threat Category	Description
	A potentially unwanted adware program designed to deliver various advertisements to the users' systems

File System Modifications

The following file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	139,264 bytes	MD5: 0xF150B800451A87FF22B14D9B028AAB69 SHA-1: 0xA1CEDF8B9826CD7AAE274CD989A825542FBA4799	Adware.Mirar [PCTools] Adware.WhenU [Symantec] not-a-virus:AdWare.Win32.SaveNow.bj [Kaspersky Lab] Adware-Mirar [McAfee]

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	151,552 bytes

Registry Modifications

The following Registry Key was created:

HKEY_LOCAL_MACHINE\SOFTWARE\RelatedPageInstall

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

MbarInstall = "[file and pathname of the sample #1]"

so that [file and pathname of the sample #1] runs every time Windows starts

[HKEY_LOCAL_MACHINE\SOFTWARE\RelatedPageInstall]

BuildName = "876933"
Error = 0x00000001
BadRetry = 0x00000002
GoodRetry = 0x00000000
FirstRun = 0x00000001

Other details

To mark the presence in the system, the following Mutex object was created:

Mbar

The data identified by the following URLs was then requested from the remote web server:

http://awbeta.net-nucleus.com/download.cgi?BUILDNAME=876933&ID=&ERROR=1
http://awbeta.net-nucleus.com/download.cgi?BUILDNAME=876933&ID=&ERROR=0

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