Exterminate It! Antimalware

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Known threats:628,666 Last Update:March 26, 15:59

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File: ApplicationHosting.dat

Location of ApplicationHosting.dat and Associated Malware

Check whether ApplicationHosting.dat is present in the following locations:

Windows 2000, Windows XP, Windows Server 2003 specific ApplicationHosting.dat file locations:

  • C:\Documents And Settings\USER_NAME\Application Data\ApplicationHosting.dat

Windows Vista, Windows Server 2008, Windows 7, Windows 8 specific ApplicationHosting.dat file locations:

  • C:\Users\USER_NAME\AppData\Roaming\ApplicationHosting.dat

If you find ApplicationHosting.dat 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 ApplicationHosting.dat file is associated with malware only if found in the locations listed above.

Notes:

Different Variations of ApplicationHosting.dat File^

File SizeFile Md5Last Seen
54272039CE08181D776117DDB580D894FB6D8Feb 27, 2016
542722D6C52560E9AFF1F9A4AAE3919E9F003Mar 8, 2016
5427215B1F7DA0AB1083F86FAC787855DAF23Mar 10, 2016
54272CF11CD753CBAE6910A0EAA97933A1490Mar 11, 2016
542725684621B633948072299DB55F6F1FECFMar 13, 2016
542727E0E433AE4C2539DCB3D69EB9F9BDBE6Mar 16, 2016
54272712198ABCD6C7E82FE877DD6B4A32AAAMar 17, 2016
542720DFE367FFDF30F716F40E8F50153FBB9Apr 13, 2016
5427266F3794CA2F6389B98DFC0B58AB9DE3BApr 18, 2016
542726759EE499904B0B6A099BA11CDDD0EB3Apr 26, 2016
5427258AADB7F5A67FED77CA56C2254FF7910May 12, 2016
54272EB6694D3D1C4CEC24E18FA6D1DF92CF2May 22, 2016
5427217139BA25C1C8B2B587590DE0A394F74May 31, 2016
5427278941120327197DF6E9F6E53CA026E6BJun 3, 2016
5427218A8EEAC6E10C3FC562EEFEFE50C23B1Jun 18, 2016
542724F4CC2D822ABE3AD76B6053126FB6D6EJul 4, 2016
5427221F5901012D739B578F406C00092C2D7Jul 14, 2016
54272024F3A9F66B349A45373DE8E4C1DA583Jul 17, 2016
54272704E018C018805DD6E33CCF65CCB80EAJul 17, 2016
542727E70D7D81B3771E0BBAC737D9136F19AJul 18, 2016
54272B2B6A042BB0477F00584ED2096D60FEDJul 18, 2016
54272394A34F4994505932723BEA165B238F4Jul 19, 2016
542727313EFF26F4ABE21C4AF80C7D2F44769Jul 19, 2016
54272B69419F199C1541A8A96260F0F87BA74Jul 21, 2016
54272C42092855F8EC860DF39D8F743F39AB0Jul 23, 2016
54272E9AFD2C15E727A8029EB138BCF13A9A0Jul 24, 2016
54272B762C8806759B17DC080E1C87CCEF280Jul 25, 2016
5427279B7E5A8B6DE317ACEB25679B8FCC1D1Jul 27, 2016
54272432997E0CC2F07C2E0FB2F2D6E936B7AAug 8, 2016
542720F55A4BA0D690C8644064C9C5F8DC825Aug 15, 2016
542721627653E9A1759730C4002431E86E6BBAug 15, 2016
54272C09153A7A1A787078CF4EE382D4707ABAug 17, 2016
54272DE912A44B2B46ECF3AAD83BDBF5E3A75Aug 17, 2016
54272F65486ED5537C3F088A98A6B2FCA4E6FSep 1, 2016
542727AADBE567BB3CF6A83A9BAA0982DA590Sep 13, 2016
542723303D1A0635A28553EBBD9CE14ACE53BSep 14, 2016
54272DC2CE2702C963E17133CACD983E8A1B5Sep 15, 2016
54272C177D857FEB596BC0B69434F0963BE91Sep 16, 2016
54272EBA1E6157C0CF71E18DE14AC4AA6BD53Sep 16, 2016
5427232CFB61C70A6A05E227C9DA912070A61Sep 19, 2016
542725A47E203A02A51182016857D5D4303FASep 19, 2016
542727E5DD96D406B0AED5A09B6824994EBE5Sep 19, 2016
5427209BD5DB85816AAD4BCC7C857B8D38C36Sep 20, 2016
54272C2B2372ACCA0019DD4177DB0394C327DSep 20, 2016
5427292880D2C3073B5E1EC412DBCDBD2116FSep 21, 2016
542724D0552B93E243C5EA962BEF2256C2AA1Sep 21, 2016
5427295DF42DE06E3E77F8583F5E659219E31Sep 25, 2016
542723A69C723569C6123BEDA49420B8B5396Sep 25, 2016
54272330FA97E074F39E3A7651FE83F719F4CSep 25, 2016
54272519BD464585FAA24C783B4558F83E056Sep 26, 2016
542723B36FBA978B0A7E41F7221AE210CDF47Sep 27, 2016
542727232DD88E29645805FEB4FFC81C328DASep 28, 2016
542728C23B06E2FB4B37355FB371E7EA33F3BSep 29, 2016
54272443AB0ABD496ABC6CD9864B345ED856ASep 29, 2016
542724C2F524199158A402E3F835B1D420D4EOct 12, 2016
542722DDB3A9DB4CE95346845AFF8A365917BOct 12, 2016
54272B51C8F6DFB27E864B8747C522716F00COct 18, 2016
5427224FD6225858EA1F5DA143BD1533D90C3Nov 7, 2016
542729FE5D7CC3D6D43C7D680F72E7CAC6495Nov 8, 2016
54272F565EB0C99F4F42161110820B6530684Nov 9, 2016
5427246DF3CB5DD55313813D64750C46603CBNov 14, 2016
54272D91F23A0F6B1A66B5A07B041054CBA5ANov 16, 2016
542727487AF15A80712AB93832743B3AC9D2ANov 17, 2016
54272F7121059190657DE8C7E8C29ED5122FDNov 20, 2016
54272A2A91CB054D7B2B41E1E181C375582F4Nov 20, 2016
542726697D708B2671441976D1452AD7C4E7ENov 21, 2016
5427218EF15E4AAB27B43B40ACF24E76F97AANov 22, 2016
54272489FFE3C28EC46A746E8E0A172EC8387Nov 23, 2016
54272140BF375CD13BEF9EB502DAB416D3461Dec 6, 2016
54272786C629942E2146E1A2D05FE37207E32Dec 6, 2016
542722A9D85943742904DE29EA4EC8E960600Dec 7, 2016
54272AC44824A856BD21AF0E8C3E905454C32Dec 8, 2016
542720FD1E5BF5E20FE11BA7B31978996F080Dec 9, 2016
542729397083B5452108A479AC773FFF1ED8DDec 17, 2016
5427215E7C3267DA66B9A058A70797CE5C777Dec 19, 2016
542729BAA99BECC07426E0CE3BB088717BF56Dec 20, 2016
54272543B696F5A9DF59B51838C41CB201AA6Jan 2, 2017
54272CC44A7CC7659B937D3417D6986791ADAJan 14, 2017
54272C33F270609756ABE9EA3321FF26714F9Jan 16, 2017
542720BD039684C3B682DF22AFBBA86D53F51Feb 1, 2017
542724775AFE7040A2BE6902748ED43CC0B24Feb 3, 2017
542723E46F56A44B8DFDB4E259679DAB3FDDAFeb 6, 2017
5427210F73C944990068326B6422E50027891Feb 13, 2017
54272E977CFC9741CDEDADDA3AFCC52F2B582Feb 13, 2017
54272D2E12AF01DD43AA9DF45D979ED4EB526Feb 16, 2017
542729A80EA60E8C4C760BF1960E3A8DF7DE8Feb 16, 2017
542726C7F69C0BF258BEE2FB7AF567A8E244DFeb 22, 2017
54272141AD6622410A09FB36859393F594EECFeb 23, 2017
54272D7BBF839AABFD5AA357EE37C35CD4B8CFeb 25, 2017
542729B7E06CA28D2551A5C03B80DC3A5F9B5Feb 26, 2017
54272489D2992001EC75623B5F51B2C97EEA7Feb 27, 2017
54272D543A1927A7DEFF170A8A789A60D287AMar 6, 2017
542723C089F23F34D18DBC624B1FC2367398CMar 13, 2017
54272818E533BA60672BBFA211A9B3DEA1EF6Mar 21, 2017
5427274A944A77DE6700C6C3B075CDCE8FABFMar 21, 2017
542722C8DB7A7CB50AE907854A8C7957387C1Mar 22, 2017
54272B49435FC02927E4F13FBB1B3E275FC14Mar 25, 2017
54272CECEC73094BA3E1B7ABE788AE5A5204AMar 25, 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 ApplicationHosting.dat^

  1. To enable deleting the ApplicationHosting.dat 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 ApplicationHosting.dat and click End Process.
  2. Using your file explorer, browse to the file using the paths listed in Location of ApplicationHosting.dat 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 ApplicationHosting.dat and Associated Malware.
  6. Notes:

    • The deletion of ApplicationHosting.dat 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 ApplicationHosting.dat 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 ApplicationHosting.dat 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 ApplicationHosting.dat. The name of the first found registry value referencing ApplicationHosting.dat 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 ApplicationHosting.dat, 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 ApplicationHosting.dat and Associated Malware.