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[Metallica]

Content is republished with permission from Malwarebytes.

What is ByeClean?

The Malwarebytes research team has determined that ByeClean is a fake anti-malware application. These so-called "rogues" use intentional false positives to convince users that their systems have been compromised. Then they try to sell you their software, claiming it will remove these threats. In extreme cases the false threats are actually the very trojans that advertise or even directly install the rogue. You are strongly advised to follow our removal instructions below.

How do I know if I am infected with ByeClean?

This is how the main screen of the rogue application looks:



You will find these icons on your desktop and in your taskbar:



And see these warnings:





How did ByeClean get on my computer?

Rogue programs use different methods for spreading themselves. This particular one was downloaded from their site.

How do I remove ByeClean?

Our program Malwarebytes' Anti-Malware can detect and remove this rogue application.

• Please download Malwarebytes' Anti-Malware to your desktop.
• Double-click mbam-setup.exe and follow the prompts to install the program.
• At the end, be sure a check-mark is placed next to the following:
  
  
  • Update Malwarebytes' Anti-Malware
  • Launch Malwarebytes' Anti-Malware
• Then click Finish.
• If an update is found, it will download and install the latest version.
• Once the program has loaded, select Perform quick scan, then click Scan.
• When the scan is complete, click OK, then Show Results to view the results.
• Be sure that everything is checked, and click Remove Selected. Reboot your computer if prompted.
• When completed, a log will open in Notepad. The rogue application should now be gone.

Is there anything else I need to do to get rid of ByeClean?

• No, Malwarebytes' Anti-Malware removes ByeClean completely.

How would the full version of Malwarebytes' Anti-Malware help protect me?

We hope our application has helped you eradicate this malicious software. If your current security solution let this infection through, you might please consider purchasing the FULL version of Malwarebytes' Anti-Malware for additional protection.

As you can see below the full version of Malwarebytes' Anti-Malware would have protected you against the ByeClean rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.

Technical details for experts

Signs in a HijackThis log:

C:\Program Files\ByeClean\ByeClean.exe

O4 - HKCU\..\Run: [ByeClean] "C:\Program Files\ByeClean\launcher.exe" "C:\Program Files\ByeClean\ByeCleanUp.exe" /first

Alterations made by the installer:

File System
  ===============
	In the existing folder C:\Documents and Settings\{username}\Desktop
	  Adds the file ByeClean.lnk"="21:10 12/07/10 1638 bytes
	Adds the folder C:\Documents and Settings\{username}\Start Menu\Programs\ByeClean
	  Adds the file ????U??.lnk"="21:10 12/07/10 1650 bytes
	  Adds the file ????U?? ???????.url"="21:10 12/07/10 111 bytes
	  Adds the file ????U?? ????.lnk"="21:10 12/07/10 1389 bytes
	Adds the folder C:\Program Files\ByeClean
	  Adds the file uninstall.exe"="21:10 12/07/10 76182 bytes
	  Adds the file launcher.exe"="03:39 17/06/10 42496 bytes
	  Adds the file ByeCleanUp.exe"="06:53 17/06/10 348160 bytes
	  Adds the file ByeCleanRes.dll"="08:13 18/06/10 552960 bytes
	  Adds the file ByeCleanFunc.dll"="06:48 14/06/10 53248 bytes
	  Adds the file ByeClean.exe"="08:20 02/07/10 512000 bytes
	Adds the folder C:\Program Files\ByeClean\data
	  Adds the file Enc_BCCode.ss"="21:10 12/07/10 1096704 bytes

  Registry
  ===============
	[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ByeClean]
	  "NoRepair"="1"
	  "NoModify"="1"
	  "UninstallString"="'"C:\Program Files\ByeClean\uninstall.exe"'"
	  "DisplayName"="'ByeClean'"
	[HKEY_CURRENT_USER\Software\ByeClean]
	  "UPDATED_BADCODE"="'20100712'"
	  "UPDATED_BADSITE"="'20100712'"
	  "COUNTDATE"="'20100712'"
	  "INSTALL_DATE"="'2010-07-12'"
	  "COMPANY"="'ByeClean'"
	  "DELAY"="'1'"
	  "PKLOG"=""
	  "COMPRESSEDVER"="'2005010100'"
	  "ACTIVEDBVER"="'2005010100'"
	  "BADSITEVER"="'2007032101'"
	  "BADCODEVER"="'2010051303'"
	  "HOMEPAGE"="'http://www.byeclean.com'"
	  "AutoLogin"="'Y'"
	  "UPDATERVER"="'1.00'"
	  "APPVER"="'1.00'"
	  "Dir"="'C:\Program Files\ByeClean'"
	[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
	  "ByeClean"="'"C:\Program Files\ByeClean\launcher.exe" "C:\Program Files\ByeClean\ByeCleanUp.exe" /first'"

Malwarebytes' Anti-Malware log:

Malwarebytes' Anti-Malware 1.46
www.malwarebytes.org

Database version: 4306

Windows 5.1.2600 Service Pack 3
Internet Explorer 6.0.2900.5512

7/12/2010 9:20:48 PM
mbam-log-2010-07-12 (21-20-48).txt

Scan type: Quick scan
Objects scanned: 113755
Time elapsed: 3 minute(s), 34 second(s)

Memory Processes Infected: 1
Memory Modules Infected: 2
Registry Keys Infected: 2
Registry Values Infected: 1
Folders Infected: 3
Files Infected: 11

Memory Processes Infected:
C:\Program Files\ByeClean\ByeClean.exe (Rogue.ByeClean) -> Unloaded process successfully.

Memory Modules Infected:
C:\Program Files\ByeClean\ByeCleanFunc.dll (Rogue.ByeClean) -> Delete on reboot.
C:\Program Files\ByeClean\ByeCleanRes.dll (Rogue.ByeClean) -> Delete on reboot.

Registry Keys Infected:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ByeClean (Rogue.ByeClean) -> Quarantined and deleted successfully.
HKEY_CURRENT_USER\Software\ByeClean (Rogue.ByeClean) -> Quarantined and deleted successfully.

Registry Values Infected:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\byeclean (Rogue.ByeClean) -> Quarantined and deleted successfully.

Folders Infected:
C:\Program Files\ByeClean (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\data (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\ByeClean (Rogue.ByeClean) -> Quarantined and deleted successfully.

Files Infected:
C:\Program Files\ByeClean\ByeClean.exe (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\ByeCleanFunc.dll (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\ByeCleanRes.dll (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\ByeCleanUp.exe (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\launcher.exe (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\uninstall.exe (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Program Files\ByeClean\data\Enc_BCCode.ss (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\ByeClean\¹ÙÀÌŬ¸° Á¦°Å.lnk (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\ByeClean\¹ÙÀÌŬ¸° ȨÆäÀÌÁö.url (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Start Menu\Programs\ByeClean\¹ÙÀÌŬ¸°.lnk (Rogue.ByeClean) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\ByeClean.lnk (Rogue.ByeClean) -> Quarantined and deleted successfully.

As mentioned before the full version of Malwarebytes' Anti-Malware could have protected your computer against this threat.
We use different ways of protecting your computer(s):

• Dynamically Blocks Malware Sites & Servers
• Malware Execution Prevention

Save yourself the hassle and get protected.