PUP.HackKMS.T

PUP.HackKMS.T is the SpyHunter detection name for a potentially unwanted program (PUP). This report summarizes what security researchers observe from samples that match this detection and explains how to remove the threat from an affected device.

Detections in this class are assigned by signature and behavioral analysis rather than to a single, named malware family, so the exact payload can vary between samples. The behavior described below is drawn from automated analysis of a representative sample and should be treated as indicative rather than exhaustive.

What Is PUP.HackKMS.T?

PUP.HackKMS.T flags files that behave in ways consistent with a potentially unwanted program (PUP). The analyzed sample is a Windows PE executable with a signature status of No Signature. Because the detection is signature-based, files caught by it may be delivered through a range of channels — bundled installers, cracked or pirated software, malicious email attachments, or drive-by downloads from untrustworthy sites.

How PUP.HackKMS.T Operates

In the analyzed run, the sample created or modified files such as:

  • c:usersuserdownloadsactivatorw7lxe.exe
  • c:usersuserdownloadsactivator
  • c:usersuserdownloads__tmp_rar_sfx_access_check_6834843

It also set Windows Registry values, including:

  • HKCUsoftwaremicrosoftwindowscurrentversioninternet settingszonemap::proxybypass
  • HKCUsoftwaremicrosoftwindowscurrentversioninternet settingszonemap::intranetname
  • HKCUsoftwaremicrosoftwindowscurrentversioninternet settingszonemap::uncasintranet
  • HKCUsoftwaremicrosoftwindowscurrentversioninternet settingszonemap::autodetect

These file and registry indicators come from one sandbox run; exact names and locations differ from sample to sample.

Malware Analysis

The values below are for a single representative sample. A signature-based detection matches many distinct files, so treat these as one example rather than the only indicator of compromise:

  • SHA-256: 23e2a3295c731ea92215504cbe43cd7ad74b4df1515d7c69a8e02add6db42103
  • File type: Windows PE executable
  • Signature status: No Signature

Symptoms of Infection

  • Security software repeatedly reports PUP.HackKMS.T on the device.
  • The system runs slower than usual, or unfamiliar processes appear in Task Manager.
  • Unexpected network activity, new files, or changed settings that you did not authorize.

Why PUP.HackKMS.T Is a Risk

Any file that triggers this detection should be treated as untrusted. Threats in this category can be used to download further malware, steal information, or give an attacker a foothold on the system. Even if a single sample appears low-impact, leaving it in place exposes the device to the additional payloads it may fetch.

How to Remove PUP.HackKMS.T

Follow these general steps to remove the threat and undo the changes it may have made:

  1. Disconnect and reboot into Safe Mode. Disconnect from the internet and restart Windows in Safe Mode with Networking to stop the threat from running.
  2. Run a full anti-malware scan. Use a reputable, up-to-date security tool such as SpyHunter to scan the entire system and quarantine everything detected as PUP.HackKMS.T.
  3. Remove suspicious programs. In Settings > Apps (or Control Panel > Programs and Features), uninstall any unfamiliar applications installed around the time the problem began.
  4. Reset affected browsers. In Chrome, Firefox, and Edge, remove unknown extensions and reset settings to clear any changes made to your homepage or search provider.
  5. Reboot and re-scan. Restart normally and run a second full scan to confirm the system is clean.

Running a full system scan with an anti-malware tool such as SpyHunter is the most reliable way to detect every component associated with this threat and remove it completely.

Conclusion

PUP.HackKMS.T is a potentially unwanted program (PUP) that should be removed promptly. Because it is detected by signature and behavior, the safest approach is a full anti-malware scan followed by the cleanup steps above, plus cautious downloading habits to avoid re-infection.

Analysis Report

General information

Family Name: PUP.HackKMS.T
Signature status: No Signature

Known Samples

MD5: 3ab90d0561e3ab09a61844d09563d8ff
SHA1: 533c9d3b495d59bfd30c698e05d6d08fa82b9f98
SHA256: 23E2A3295C731EA92215504CBE43CD7AD74B4DF1515D7C69A8E02ADD6DB42103
File Size: 6.02 MB, 6021721 bytes

Windows Portable Executable Attributes

  • File doesn't have "Rich" header
  • File doesn't have relocations information
  • File doesn't have security information
  • File has exports table
  • File is 32-bit executable
  • File is either console or GUI application
  • File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
  • File is Native application (NOT .NET application)
  • File is not packed
  • IMAGE_FILE_DLL is not set inside PE header (Executable)
Show More
  • IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)

File Icons

File Traits

  • 2+ executable sections
  • VirtualQueryEx
  • x86

Files Modified

File Attributes
c:\users\user\downloads\__tmp_rar_sfx_access_check_6834843 Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\downloads\activator Generic Write,Read Attributes
c:\users\user\downloads\activator Synchronize,Write Attributes
c:\users\user\downloads\activator\w7lxe.exe Generic Read,Write Data,Write Attributes,Write extended,Append data
c:\users\user\downloads\activator\w7lxe.exe Synchronize,Write Attributes

Registry Modifications

Key::Value Data API Name
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet  RegNtPreCreateKey
HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect RegNtPreCreateKey
HKCU\software\microsoft\ctf\msutb::left RegNtPreCreateKey
HKCU\software\microsoft\ctf\msutb::top RegNtPreCreateKey
Show More
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m' �� �v �Z����#��%�(�*�"1�1HO@V�H[uH�p_�za$b"hc�wk�ql(�w�n{b��P��Hu����������������m�Ù��gi�V����$�8წ��A�=�S)�B1_B��T�Vw��i��`���%�������AE��"��D��&��$�� RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m( �� �v �Z����#��%�(�*�"1�1HO@V�H[uH�p_�za$b"hc�we�vk�ql(�w�n{b��P��Hu����������������m�Ù��gi�V����$�8წ��A�=�S)�B1_B��T�Vw��i��`���%�������AE��"��D��&�� RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m- �� �v �Z����#��%�(�*�"1�1HO@V�H[uH�p_�za$b"hc�we�vk�ql(�w�n{b��P��Hu�����7�M�������������m�Ù��IV�gi�V����$�8წ���(!��jA��=�S)�B1_B��T�Vw�`�V�i��`��� RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 鴁ȁ獖}偫~엦1iꙥžr ֢ RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m/ �� �v �Z����#��%�(�*�",=�1�1HO@V�H[uH�pN�_�za$b"hc�we�vk�ql(�w�n{b��P��Hu�����7�M�������������m�Ù��IV�gi�V����$�8წ���(!��jA��=�S)�B1_B��T�Vw�`�V�i RegNtPreCreateKey
HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 �m0 �� �v �Z ������#��%�(�*�",=�1�1HO@V�H[uH�pN�_�za$b"hc�we�vk�ql(�w�n{b��P��Hu�����7�M�������������m�Ù��IV�gi�V����$�8წ���(!��jA��=�S)�B1_B��T�Vw�`� RegNtPreCreateKey

Windows API Usage

Category API
Keyboard Access
  • GetKeyState
Process Manipulation Evasion
  • NtUnmapViewOfSection
  • ReadProcessMemory
Process Shell Execute
  • ShellExecuteEx
Anti Debug
  • IsDebuggerPresent
User Data Access
  • GetUserObjectInformation

Shell Command Execution

(NULL) explorer.exe Activator\

Related Posts

Trending

Most Viewed

Loading...