What is fake CCleaner?
The Malwarebytes research team has determined that fake CCleaner is a Tech Support Scam. These so-called "Tech Support Scammers" try to trick you into calling their phone number for various reasons, all of which turn out to be fraudulent in the end.
How do I know if my computer is affected by fake CCleaner?
You may see this entry in your list of installed programs:
and this icon on your desktop:
this warning sign after install:
and this fake BSOD displaying the scammmers phone number:
How did fake CCleaner get on my computer?
Tech Support Scammers use different methods for distributing themselves. This particular one was offered as an installer for the popular and legiitimate CCleaner.
How do I remove fake CCleaner?
Our program Malwarebytes Anti-Malware can detect and remove this rogue application. But since this Tech Support Scam blocks your taskbar and desktop you will have to boot into "Safe mode with networking".
Once you are in safe mode, you can continue with the instructions below.
- Please download Malwarebytes Anti-Malware to your desktop.
- Double-click mbam-setup-version.exe and follow the prompts to install the program.
- At the end, be sure a check-mark is placed next to the following:
- Enable free trial of Malwarebytes Anti-Malware Premium
- Launch Malwarebytes Anti-Malware
- Then click Finish.
- If an update is found, you will be prompted to download and install the latest version.
- Once the program has loaded, select Scan Now. Or select the Threat Scan from the Scan menu.
- When the scan is complete, make sure that all Threats are selected, and click Remove Selected.
- Restart your computer when prompted to do so.
- No, Malwarebytes' Anti-Malware removes fake CCleaner completely.
We hope our application and this guide have helped you eradicate this hijacker.
As you can see below the full version of Malwarebytes Anti-Malware would have protected you against the Tech Supprt Scam.
Technical details for experts
You may see these entries in FRST logs:
HKLM-x32\...\Winlogon: [Shell] explorer.exe, CCleaner.exe [ ] () <=== ATTENTION
Startup: C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\CCleaner.lnk [2016-04-18]
ShortcutTarget: CCleaner.lnk -> C:\Users\{username}\AppData\Roaming\Microsoft\Installer\{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}\_F8DD2D610DF89A4073D4F3.exe ()
CCleaner (HKLM-x32\...\{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}) (Version: 1.0.0 - IConnect)Alterations made by the installer:
File system details [View: All details] (Selection)
---------------------------------------------------
Adds the folder C:\Users\{username}\AppData\Local\IConnect\CCleaner
Adds the file CCleaner.exe"="3/30/2016 10:35 AM, 365568 bytes, A
Adds the file CCleaner.exe.config"="10/22/2015 6:40 PM, 159 bytes, A
Adds the file CCleaner.InstallState"="4/18/2016 8:06 AM, 2597 bytes, A
Adds the file clean.ico"="3/1/2016 9:50 PM, 172238 bytes, A
Adds the file errorconfig.xml"="3/14/2016 7:31 PM, 316 bytes, A
Adds the file Windows.Form.Extension.dll"="2/29/2016 10:14 AM, 9728 bytes, A
In the existing folder C:\Users\{username}\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Adds the file CCleaner.lnk"="4/18/2016 8:06 AM, 3049 bytes, A
In the existing folder C:\Users\{username}\Desktop
Adds the file CCleaner.lnk"="4/18/2016 8:06 AM, 3083 bytes, A
In the existing folder C:\Windows\Installer
Adds the file 1eb036.msi"="3/30/2016 7:06 AM, 1207808 bytes, A
Adds the file SourceHash{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}"="4/18/2016 8:04 AM, 20480 bytes, A
Registry details [View: All details] (Selection)
------------------------------------------------
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}]
"AuthorizedCDFPrefix"="REG_SZ", ""
"Comments"="REG_SZ", ""
"Contact"="REG_SZ", "IConnect"
"DisplayName"="REG_SZ", "CCleaner"
"DisplayVersion"="REG_SZ", "1.0.0"
"EstimatedSize"="REG_DWORD", 541
"HelpLink"="REG_SZ", ""
"HelpTelephone"="REG_SZ", ""
"InstallDate"="REG_SZ", "20160418"
"InstallLocation"="REG_SZ", ""
"InstallSource"="REG_SZ", "C:\Users\{username}1\AppData\Local\Temp\nsf7444.tmp\CCleaner\"
"Language"="REG_DWORD", 1033
"ModifyPath"="REG_EXPAND_SZ, "MsiExec.exe /I{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}"
"Publisher"="REG_SZ", "IConnect"
"Readme"="REG_SZ", ""
"Size"="REG_SZ", ""
"UninstallString"="REG_EXPAND_SZ, "MsiExec.exe /I{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}"
"URLInfoAbout"="REG_SZ", ""
"URLUpdateInfo"="REG_SZ", ""
"Version"="REG_DWORD", 16777216
"VersionMajor"="REG_DWORD", 1
"VersionMinor"="REG_DWORD", 0
"WindowsInstaller"="REG_DWORD", 1
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon]
"Shell"= REG_SZ, "explorer.exe, CCleaner.exe"
Malwarebytes Anti-Malware log:Malwarebytes Anti-Malware
www.malwarebytes.org
Scan Date: 4/18/2016
Scan Time: 8:23 AM
Logfile: mbamCCleanerTSS.txt
Administrator: Yes
Version: 2.2.1.1043
Malware Database: v2016.04.18.01
Rootkit Database: v2016.04.17.01
License: Premium
Malware Protection: Disabled
Malicious Website Protection: Enabled
Self-protection: Enabled
OS: Windows 7 Service Pack 1
CPU: x64
File System: NTFS
User: {username}
Scan Type: Threat Scan
Result: Completed
Objects Scanned: 363760
Time Elapsed: 9 min, 16 sec
Memory: Enabled
Startup: Enabled
Filesystem: Enabled
Archives: Enabled
Rootkits: Enabled
Heuristics: Enabled
PUP: Enabled
PUM: Enabled
Processes: 0
(No malicious items detected)
Modules: 0
(No malicious items detected)
Registry Keys: 1
Rogue.TechSupportScam, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}, Quarantined, [f653b4fc8415162056607b2c17eda060],
Registry Values: 1
Rogue.TechSupportScam, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS\CURRENTVERSION\UNINSTALL\{1827CDDB-1B8A-4A35-B365-60C1C8F79D0C}|Publisher, IConnect, Quarantined, [f653b4fc8415162056607b2c17eda060]
Registry Data: 1
Hijack.Shell, HKLM\SOFTWARE\WOW6432NODE\MICROSOFT\WINDOWS NT\CURRENTVERSION\WINLOGON|Shell, explorer.exe, CCleaner.exe, Good: (Explorer.exe), Bad: (explorer.exe, CCleaner.exe),Replaced,[bf8ab4fc1f7a999d8d713d00679e6b95]
Folders: 2
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Files: 7
Rogue.TechSupportScam, C:\Users\{username}\Desktop\CCleaner (2).exe, Quarantined, [f1585a56c8d195a1163c8a9a47bbf30d],
Rogue.TechSupportScam, C:\Windows\Installer\1eb036.msi, Quarantined, [0742119f20796dc99366051ee2209d63],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner\errorconfig.xml, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner\CCleaner.exe.config, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner\CCleaner.InstallState, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner\clean.ico, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Rogue.TechSupportScam, C:\Users\{username}\AppData\Local\IConnect\CCleaner\Windows.Form.Extension.dll, Quarantined, [7dcc9e12badf6cca2efa85e4bc4927d9],
Physical Sectors: 0
(No malicious items detected)
(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
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