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Removal instructions for PCupgrade


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#1 Metallica

Metallica

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Posted 22 January 2012 - 01:37 PM

What is PCupgrade?

The Malwarebytes research team has determined that PCupgrade 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 PCupgrade?

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

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You will find this icon in your taskbar:

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And see these warnings:

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How did PCupgrade get on my computer?

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

How do I remove PCupgrade?

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 PCupgrade?

  • No, Malwarebytes' Anti-Malware removes PCupgrade 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 PCupgrade rogue. It would have warned you before the rogue could install itself, giving you a chance to stop it before it became too late.


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Technical details for experts

Signs in a HijackThis log:
C:\Program Files\pcupgrade\pcupgrade.exe

O23 - Service: pcupgrade Service (pcupgradeService) - Unknown owner - C:\Program Files\pcupgrade\pcupgradese.exe

Alterations made by the installer:

File System
===============
Adds the folder C:\Program Files\pcupgrade
Adds the file uninst_pcupgrade.exe"="18:27 22/01/12 154648 bytes
Adds the file pcupgradeU.exe"="18:21 22/01/12 76312 bytes
Adds the file pcupgradese.exe"="18:29 22/01/12 43544 bytes
Adds the file pcupgradeEngine.exe"="18:30 22/01/12 17432 bytes
Adds the file pcupgrade.exe"="18:26 22/01/12 411152 bytes
Adds the file pcspeedflash.swf"="18:31 22/01/12 35781 bytes
Adds the file bootflash.swf"="18:30 22/01/12 35781 bytes
Adds the folder C:\Program Files\pcupgrade\Backup

Registry
===============
[HKEY_LOCAL_MACHINE\SOFTWARE\pcupgrade]
"inspectday"=".2T.X..@"
"popup"="'1'"
"Today"="'20120122'"
"ver7"="'20100803'"
"ver6"="'20100803'"
"ver5"="'20100803'"
"ver4"="'20101029'"
"ver3"="'20100810'"
"ver2"="'20110510'"
"ver1"="'20100808'"
"userselect"="0"
"autostart"="1"
"userid"="'{username}'"
"pcupgrade_nic"="'08:00:27:FE:25:2E'"
"installmode"="'2'"
"code1"="'pcupgrade'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer\Application Compatibility]
"pupgde"="'119181'"
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\pcupgrade]
"NoRepair"="1"
"NoModify"="1"
"DisplayIcon"="'C:\Program Files\pcupgrade\uninst_pcupgrade.exe'"
"UninstallString"="'C:\Program Files\pcupgrade\uninst_pcupgrade.exe'"
"URLInfoAbout"="'http://www.pcupgrade.co.kr'"
"HelpLink"="'http://www.pcupgrade.co.kr'"
"DisplayVersion"="'1.2'"
"DisplayName"="'pcupgrade'"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCUPGRADESERVICE]
"NextInstance"="1"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCUPGRADESERVICE\0000]
"DeviceDesc"="'pcupgrade Service'"
"ClassGUID"="'{8ECC055D-047F-11D1-A537-0000F8753ED1}'"
"Class"="'LegacyDriver'"
"ConfigFlags"="0"
"Legacy"="1"
"Service"="'pcupgradeService'"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_PCUPGRADESERVICE\0000\Control]
"ActiveService"="'pcupgradeService'"
"*NewlyCreated*"="0"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\pcupgradeService]
"ObjectName"="'LocalSystem'"
"DisplayName"="'pcupgrade Service'"
"ImagePath"="C:\Program Files\pcupgrade\pcupgradese.exe."
"ErrorControl"="1"
"Start"="2"
"Type"="16"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\pcupgradeService\Enum]
"NextInstance"="1"
"Count"="1"
"0"="'Root\LEGACY_PCUPGRADESERVICE\0000'"
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\pcupgradeService\Security]
"Security"="................0.................................`.................."
[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer]
"pcupgrade_pcupgrade"="'1'"


Malwarebytes' Anti-Malware log:
Malwarebytes Anti-Malware 1.60.0.1800
www.malwarebytes.org

Database version: v2012.01.22.03

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
{username} :: MBAM-D3E8C91ACC [administrator]

1/22/2012 6:45:10 PM
mbam-log-2012-01-22 (18-45-10).txt

Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 150714
Time elapsed: 59 second(s)

Memory Processes Detected: 1
C:\Program Files\pcupgrade\pcupgrade.exe (Rogue.PCProtect) -> 1072 -> Delete on reboot.

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 2
HKLM\SYSTEM\CurrentControlSet\Services\pcupgradeService (Rogue.PCProtect) -> Quarantined and deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\pcupgrade (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.

Registry Values Detected: 1
HKCU\Software\Microsoft\Internet Explorer|pcupgrade_pcupgrade (Rogue.PCUpgrade) -> Data: 1 -> Quarantined and deleted successfully.

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 2
C:\Program Files\pcupgrade (Rogue.K.PCUpgrade) -> Delete on reboot.
C:\Program Files\pcupgrade\Backup (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.

Files Detected: 13
C:\Program Files\pcupgrade\pcupgrade.exe (Rogue.PCProtect) -> Delete on reboot.
C:\Program Files\pcupgrade\pcupgradese.exe (Rogue.PCProtect) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Desktop\pcupgradesetup.exe (Rogue.PCUpgrade) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\ISXPLGEB\pcupgradeEngine[1].exe (Rogue.PCProtect) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\ISXPLGEB\pcupgradeU[1].exe (Rogue.PCUpgrade) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\O92WEW06\pcupgrade[1].exe (Rogue.PCProtect) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\Q5PIP6JW\pcupgradese[1].exe (Rogue.PCProtect) -> Quarantined and deleted successfully.
C:\Documents and Settings\{username}\Local Settings\Temporary Internet Files\Content.IE5\Y3PH3C5T\uninst_pcupgrade[1].exe (Rogue.PCUpgrade) -> Quarantined and deleted successfully.
C:\Program Files\pcupgrade\bootflash.swf (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.
C:\Program Files\pcupgrade\pcspeedflash.swf (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.
C:\Program Files\pcupgrade\pcupgradeEngine.exe (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.
C:\Program Files\pcupgrade\pcupgradeU.exe (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.
C:\Program Files\pcupgrade\uninst_pcupgrade.exe (Rogue.K.PCUpgrade) -> Quarantined and deleted successfully.

(end)


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.
Pieter Arntz
Malwarebytes Blogger

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