Exterminate It! Antimalware


Known threats:699,742 Last Update:November 20, 22:46


Dear Jean,

Thank you for your follow-up. I did indeed use the Submit State feature last night and this morning, your team sent me instructions to run an 'update' and then re-run Exterminate It! on the PC. I just finished that process and the new update wiped it out. I ran my regular anti-spy/anti-virus to double-check and it wasn't able to detect it either. I appreciate the support from both you and your team.

Linda D.

File: ahst.lni

Location of ahst.lni and Associated Malware

Check whether ahst.lni is present in the following locations:

Windows 2000, Windows XP, Windows Server 2003 specific ahst.lni file locations:

  • C:\Documents And Settings\USER_NAME\Application Data\ahst.lni

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific ahst.lni file locations:

  • C:\Users\USER_NAME\AppData\Roaming\ahst.lni

If you find ahst.lni file in any of these locations, your computer is very likely to be infected with the following malware:

IMPORTANT: Malware files can be camouflaged with the same file names as legitimate files. The ahst.lni file is associated with malware only if found in the locations listed above.


Different Variations of ahst.lni File^

File SizeFile Md5Last Seen
3507852F884664C557B4C9909688F34EA1ADNov 27, 2011
121098DBC018C6223EC1CBCF2107D1642DF5Nov 28, 2011
121237396FA2E544860B964CB871CB148F34Nov 29, 2011
1862BAD2E1453BE5BF5733266253521E753CNov 29, 2011
1213DD1FB12BA38B432FC7716CF54DC28E86Nov 29, 2011
12078682DFB5A78CB3EF719212B5A5F6ACE2Dec 1, 2011
1213532E64ECC707E34B9B27D57682A7654BDec 4, 2011
121389024DF79C916D0F9A6E0F58D99E2E96Dec 5, 2011
12114064BB814710573FD12985AEB98DA191Dec 6, 2011
1209CA3E816673E4E5EF2F54ED0D752FB693Dec 7, 2011
12134466B075146E1AA851090448204B3F6FDec 8, 2011
9066662B3516C3BFE5C3B803FA374E1FC0DDec 8, 2011
12138EC7DF27A3A0D325F820AD361B4661B9Dec 10, 2011
12137A5BDAB4374C5B4CF7A7D8AC79817FF0Dec 10, 2011
1209D8798491F051B5C5E5BC89D4E62090EADec 10, 2011
12137E0F20C2116849C1A695BFFE97067ABADec 11, 2011
1209AD02659B59B9FDCB832D0773163E40C8Dec 14, 2011
120724C8C93CBB910577EFDE892401628622Dec 14, 2011
570154415B96A44754615FCE482630A98AA5Dec 18, 2011
1213B6D916D983E8204915E4B410C9CDF3F9Dec 20, 2011
12135BF6E70F27F05BD027C2F01BD187F46FDec 22, 2011
12087CD712A04C9D13735B7CC5AC63ECFB41Dec 24, 2011
1213AFF19DB26A680557F8495F0E3A2AB0A1Dec 24, 2011
1209EC92A48F5A042E67377E6433AE78C299Dec 28, 2011
32515327D15C352B12EDF551B48590B8D5C1Jan 12, 2012
121353584947DA714F04A7B73E19019C3313Jan 14, 2012
12134DE1A3BB53755BC33E92379BCB0B9907Jan 22, 2012
12131BC1FDDA373786A8835DCC6EDFAD4AA3Jan 27, 2012
20728048E9BCFBCDB24D56CE9D1E7403A11BFeb 10, 2012
1209EDDBAF94257A8A6A145F96CC4F572967Feb 21, 2012
1213AA330ADDC65EC4448529253ACE5698B0Mar 5, 2012
1207CCD330559A8CED57C3849364BE9599F8Mar 10, 2012
121334B9A360FFD21ED0CB2B55094C6672C9Apr 9, 2012
1212167A55F3509B52EE0871A39C2B735CD7May 3, 2012
1209A28CA2F4EB44A445DE8EC17658705EB7May 10, 2012
4215C8FB07DE73CF5D56DF7D8A05B08A6088Jun 8, 2012
2147F80E54BD558C72864C0919B13487785BAug 31, 2012
1213FF6351A36611AF376C822B2A54A9802ESep 28, 2012
1213E435BD4B725347C677FEF72AE4E87F87May 21, 2013
12139236231D3F0CA15B961B3722D45C11A1Aug 2, 2014
121326D6EB24F2F7C07F1FFED8337160305AAug 5, 2017

Why Is It Important to Remove Malware Files?^

It is imperative that you delete malware-associated files as soon as possible because they can be used - or are already being used - to inflict serious damage on your PC, including:

  • Disrupting the normal functioning of the operating system or rendering it completely useless.
  • Hijacking valuable private information (credit card numbers, passwords, PIN codes, etc.)
  • Directing all your Web searches to the same unwanted or malicious sites.
  • Dramatically slowing down your computer.
  • Gaining total control of your PC to spread viruses and trojans and send out spam.

How to Remove ahst.lni^

  1. To enable deleting the ahst.lni file, terminate the associated process in the Task Manager as follows:
    • Right-click in the Windows taskbar (a bar that appears along the bottom of the Windows screen) and select Task Manager on the menu.
    • In the Tasks Manager window, click the Processes tab.
    • On the Processes tab, select ahst.lni and click End Process.
  2. Using your file explorer, browse to the file using the paths listed in Location of ahst.lni and Associated Malware.
  3. Select the file and press SHIFT+Delete on the keyboard.
  4. Click Yes in the confirm deletion dialog box.
  5. Repeat steps 2-4 for each location listed in Location of ahst.lni and Associated Malware.
  6. Notes:

    • The deletion of ahst.lni will fail if it is locked; that is, it is in use by some application (Windows will display a corresponding message). For instructions on deleting locked files, see Deleting Locked Files.
    • The deletion of ahst.lni will fail if your Windows uses the NT File System (NTFS) and you have no write rights for the file. Request your system administrator to grant you write rights for the file.

Deleting Locked Files^

You can delete locked files with the RemoveOnReboot utility. You can install the RemoveOnReboot utility from here.

After you delete a locked file, you need to delete all the references to the file in Windows registry.

To delete a locked file:

  1. Right-click on the file and select Send To -> Remove on Next Reboot on the menu.
  2. Restart your computer.

The file will be deleted on restart.

Note: In the case of complex viruses that can replicate themselves, malware files can reappear in the same locations even after you have deleted those files and restarted your computer. Exterminate It! Antimalware can effectively eradicate such viruses from your computer.

To remove all registry references to a ahst.lni malware file:

  1. On the Windows Start menu, click Run.
  2. In the Open box, type regedit and click OK. The Registry Editor window opens.
  3. On the Edit menu, select Find.
  4. In the Find dialog box, type ahst.lni. The name of the first found registry value referencing ahst.lni is highlighted in the right pane of the Registry Editor window.
  5. Right-click the registry value name and select Delete on the menu.
  6. Click Yes in the Confirm Value Delete dialog box.
  7. To delete all other references to ahst.lni, repeat steps 4-6.
IMPORTANT: Malware files can masquerade as legitimate files by using the same file names. To avoid deleting a harmless file, ensure that the Value column for the registry value displays exactly one of the paths listed in Location of ahst.lni and Associated Malware.