Home Possibly Unwanted Program PUP.Compatibility Verifier

PUP.Compatibility Verifier

Posted: January 22, 2015

Threat Metric

Ranking: 19,700
Threat Level: 1/10
Infected PCs: 41,725
First Seen: January 22, 2015
Last Seen: February 1, 2025
OS(es) Affected: Windows

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:



%WINDIR%\system32\Compatibility Verifier\compatibilitycheck.exe File name: compatibilitycheck.exe
Size: 51.3 MB (51309224 bytes)
MD5: d5b5534ba41ae369eaf20f76855cfa9a
Detection count: 719
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\system32\Compatibility Verifier
Group: Malware file
Last Updated: July 22, 2021
%WINDIR%\TEMP\aaccee\aabbcc.exe File name: aabbcc.exe
Size: 33.13 MB (33130204 bytes)
MD5: f255a6458c6b0427032b02d355da2a04
Detection count: 253
File type: Executable File
Mime Type: unknown/exe
Path: %WINDIR%\TEMP\aaccee
Group: Malware file
Last Updated: November 20, 2022
%SystemDrive%\Users\<username>\AppData\Roaming\Compatibility Verifier\compatibilitychecksvc.exe File name: compatibilitychecksvc.exe
Size: 87.2 KB (87208 bytes)
MD5: b4d5cb761470671e567d093327b581a9
Detection count: 8
File type: Executable File
Mime Type: unknown/exe
Path: %SystemDrive%\Users\<username>\AppData\Roaming\Compatibility Verifier
Group: Malware file
Last Updated: March 24, 2016

More files

Registry Modifications

The following newly produced Registry Values are:

Regexp file mask%WINDIR%\TEMP\aaccee\aabbcc.exeHKEY..\..\..\..{RegistryKeys}SYSTEM\ControlSet001\services\Verifies and fixes application compatibility issuesSYSTEM\CurrentControlSet\services\Verifies and fixes application compatibility issues

Additional Information

The following directories were created:
%APPDATA%\Compatibility Verifier%WINDIR%\SysWOW64\Compatibility Verifier%WINDIR%\system32\Compatibility Verifier
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