Twain-Tech and biprep.exe - Easily eliminate this problem
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Threat's profile
|
Name of the threat: Twain-Tech |
| Command or file name: biprep.exe |
| Threat type: Adware |
| Affected OS: Win32 (Windows 9x, Windows XP, Windows Vista) |
Intrusion method
This threat copies its file(s) to your hard disk. Its typical file name is Twain-Tech. Then it creates new startup key with name Twain-Tech and value biprep.exe. You can also find it in your processes list with name biprep.exe or Twain-Tech.
If you have further questions about this threat, please fill in the form below and we'll contact you shortly.
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How to fix Twain-Tech
This problem can be solved manually by deleting all registry keys and files connected with this software, removing it from starup list and unregistering all corresponding DLLs. Additionally missing DLL's should be restored from distribution in case they are corrupted by Twain-Tech. To fix this threat, you should:
1. Kill the following processes and delete the appropriate files:
• acmparse.dll
• biprep.exe
• b_371_0_1_585800.htm
• ft1_01_0_279_gepfah.exe
• multimpp.dll
• multimpp.dll.bak
• oyyilj8kl.exe
• smdat32a.sys
• smdat32m.sys
• twaintec.ini
• twtini.inf
• uduftm.exe
• wast2.exe
• wsebate1.exe
• wsem218.dll
• xgn.exe
Warning: you should delete only those files which checksums are listed as malicious. There may be valid files with the same names in your system. We recommend you to use True Sword for safe problem solution.
2. Delete the following malicious folders:
• C:\Documents and Settings\User\local settings\temp\thi2eec.tmp\
• %favorites%\adult sites\
• %favorites%\adult sites\amateur\
• %favorites%\adult sites\gay\
• %favorites%\adult sites\hardcore\
• %favorites%\adult sites\latin\
• %favorites%\adult sites\mature\
• %favorites%\adult sites\reality\
• %favorites%\adult sites\teen\
• %favorites%\adult sites\upskirt\
• %favorites%\adult sites\voyeur\
• %favorites%\free adult content\
• %favorites%\free adult content\daily movies\
• %favorites%\free adult content\daily pictures\
• C:\Documents and Settings\User\thi****.tmp\
3. Delete the following malicious registry entries and\or values:
• Key: CLSID\{0000607D-D204-42C7-8E46-216055BF9918}
• Key: software\microsoft\windows\currentversion\explorer\browser helper objects\{000020dd-c72e-4113-af77-dd56626c6c42}
Value: @
• Key: software\microsoft\windows\currentversion\explorer\browser helper objects\{0000607d-d204-42c7-8e46-216055bf9918}
Value: @
• Key: software\classes\clsid\{000020dd-c72e-4113-af77-dd56626c6c42}
Value: @
• Key: SOFTWARE\Classes\CLSID\{0000607D-D204-42C7-8E46-216055BF9918}
• Key: SOFTWARE\Classes\TwaintecDll.TwaintecDllObj.1
• Key: software\microsoft\windows\currentversion\explorer\browser helper objects\{000020dd-c72e-4113-af77-dd56626c6c42}
• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{0000607D-D204-42C7-8E46-216055BF9918}
• Key: software\microsoft\windows\currentversion\explorer\browser helper objects\{fa1a048a-3b99-4b86-9ece-5f7c197cbf39}
Value: @
• Key: software\microsoft\windows\currentversion\run\oyyilj8kl
Value: @
• Key: software\microsoft\windows\currentversion\run\xgn
Value: @
• Key: software\microsoft\windows\currentversion\uninstall\twaintec\displayname
Value: @
• Key: software\microsoft\windows\currentversion\uninstall\twaintec\uninstallstring
Value: @
• Key: SOFTWARE\twaintec
• Key: software\twaintec\tt4c5ntrstransac
Value: @
• Key: software\twaintec\tt4n5a6tionscode
Value: @
• Key: software\twaintec\ttc1o4d5eofsfinalad
Value: @
• Key: software\twaintec\ttc4n5tfyl
Value: @
• Key: software\twaintec\ttc4n5trmsgsdisp
Value: @
• Key: software\twaintec\ttc4n5trsevnt
Value: @
• Key: software\twaintec\ttc4s5insur
Value: @
• Key: software\twaintec\ttc4u5rrentsmode
Value: @
• Key: software\twaintec\ttd4s5tschost
Value: @
• Key: software\twaintec\ttd4s5tscpath
Value: @
• Key: software\twaintec\ttd4s5tssend
Value: @
• Key: software\twaintec\tti4d5ofsdist
Value: @
• Key: software\twaintec\tti4d5ofsinst
Value: @
• Key: software\twaintec\tti4g5nores
Value: @
• Key: software\twaintec\tti4n5progscab
Value: @
• Key: software\twaintec\tti4n5progsex
Value: @
• Key: software\twaintec\tti4n5progslstest
Value: @
• Key: software\twaintec\ttl3a4stmotssday
Value: @
• Key: software\twaintec\ttl3a4stsschckin
Value: @
• Key: software\twaintec\ttm4o5dessync
Value: @
• Key: software\twaintec\tts4t5atusofsinst
Value: @
• Key: software\twaintec\tts4t5i6cky1s
Value: @
• Key: software\twaintec\tts4t5icky2s
Value: @
• Key: software\twaintec\ttt4h5rshsbath
Value: @
• Key: software\twaintec\ttt4h5rshschecksin
Value: @
• Key: software\twaintec\ttt4h5rshsmots
Value: @
• Key: software\twaintec\ttt4h5rshsyssinf
Value: @
• Key: software\twaintec\ttt4i5m6eofsfinalad
Value: @
• Key: software\twaintec\ttt4o5plistspos
Value: @
• Key: CLSID\{000020dd-c72e-4113-af77-dd56626c6c42}
• Key: clsid\{386a771c-e96a-421f-8ba7-32f1b706892f}
• Key: SOFTWARE\Classes\MxTargetDll.MxTargetDllObj
• Key: SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\twaintec
• Key: Software\MxTarget
• Key: software\microsoft\internet explorerinternet0%\Search
Value: CustomizeSearch
Warning: If value is listed for some registry entries, you should only clear these values and leave keys with such values untouched. We recommend you to use True Sword for safe problem solution.
Here are the descriptions of problems connected with Twain-Tech and biprep.exe we received earlier:
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