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Trojan.KillFiles2.42

Added to the Dr.Web virus database: 2021-06-23

Virus description added:

Technical Information

Malicious functions
Searches for windows to
detect analytical utilities:
  • ClassName: 'OllyDbg', WindowName: ''
  • ClassName: 'Qt5QWindowIcon', WindowName: 'The Wireshark Network Analyzer'
  • ClassName: 'PROCMON_WINDOW_CLASS', WindowName: ''
  • ClassName: 'PROCEXPL', WindowName: ''
Modifies file system
Creates the following files
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\yhyqjv1c\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\8zo6v399\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\09ieim33\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\j2z3dd30\desktop.ini
  • %APPDATA%\microsoft\windows\cookies\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\history\history.ie5\mshist012021062320210624\index.dat
  • %APPDATA%\microsoft\windows\iecompatcache\index.dat
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\antiphishing\2cedbfbc-dba8-43aa-b1fd-cc8e6316e3e2.dat
Sets the 'hidden' attribute to the following files
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\yhyqjv1c\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\8zo6v399\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\09ieim33\desktop.ini
  • %LOCALAPPDATA%\microsoft\windows\<INETFILES>\content.ie5\j2z3dd30\desktop.ini
  • %APPDATA%\microsoft\windows\cookies\desktop.ini
Deletes the following files
  • %LOCALAPPDATA%\microsoft\windows\history\history.ie5\mshist012021062320210624\index.dat
  • %WINDIR%\prefetch\svchost.exe-7ac6742a.pf
  • %WINDIR%\prefetch\setup.exe-7c026c7f.pf
  • %WINDIR%\prefetch\setup.exe-d0f6149e.pf
  • %WINDIR%\prefetch\setup.exe-f034c93c.pf
  • %WINDIR%\prefetch\setup_wm.exe-d33fd27d.pf
  • %WINDIR%\prefetch\sppsvc.exe-b0f8131b.pf
  • %WINDIR%\prefetch\steamwebhelper.exe-93613764.pf
  • %WINDIR%\prefetch\svchost.exe-80f4a784.pf
  • %WINDIR%\prefetch\osppsvc.exe-e53d3cc0.pf
  • %WINDIR%\prefetch\systempropertiesadvanced.exe-68c7c4f0.pf
  • %WINDIR%\prefetch\taskeng.exe-48d4e289.pf
  • %WINDIR%\prefetch\taskhost.exe-7238f31d.pf
  • %WINDIR%\prefetch\test_msvcp100.exe-93b75347.pf
  • %WINDIR%\prefetch\test_msvcp100.exe-d47ff5f1.pf
  • %WINDIR%\prefetch\test_msvcp100d_x64.exe-24890c8a.pf
  • %WINDIR%\prefetch\schtasks.exe-5ca45734.pf
  • %WINDIR%\prefetch\sc.exe-945d79ae.pf
  • %WINDIR%\prefetch\regedit.exe-90feea06.pf
  • %WINDIR%\prefetch\rdrcef.exe-5852a8de.pf
  • %WINDIR%\prefetch\powerpnt.exe-158b76a4.pf
  • %WINDIR%\prefetch\pfsvperfstats.bin
  • %WINDIR%\prefetch\pcaui.exe-3e82c312.pf
  • %WINDIR%\prefetch\ose00001.exe-3da4b844.pf
  • %WINDIR%\prefetch\ngen.exe-ae594a6b.pf
  • %WINDIR%\prefetch\test_msvcp100_x64.exe-6e02575e.pf
  • %WINDIR%\prefetch\ose.exe-51c16f0e.pf
  • %WINDIR%\prefetch\opera_crashreporter.exe-e30ebed0.pf
  • %WINDIR%\prefetch\opera.exe-9dd4e019.pf
  • %WINDIR%\prefetch\ntosboot-b00dfaad.pf
  • %WINDIR%\prefetch\ngen.exe-ec3f9239.pf
  • %WINDIR%\prefetch\regtlib.exe-e21980a2.pf
  • %WINDIR%\prefetch\ose.exe-533d8ac9.pf
  • %WINDIR%\prefetch\regsvcs.exe-a54ad617.pf
  • %WINDIR%\prefetch\test_msvcp110.exe-39f2672e.pf
  • %WINDIR%\prefetch\test_msvcp110d_x64.exe-6afaa41f.pf
  • %WINDIR%\prefetch\triggerkms.exe-7e8edfdc.pf
  • %WINDIR%\prefetch\trustedinstaller.exe-3cc531e5.pf
  • %WINDIR%\prefetch\unins000.exe-53663602.pf
  • %WINDIR%\prefetch\vs7jit.exe-aef49c84.pf
  • %WINDIR%\prefetch\vssvc.exe-b8afc319.pf
  • %WINDIR%\prefetch\werfault.exe-e69f695a.pf
  • %WINDIR%\prefetch\wevtutil.exe-400d93e8.pf
  • %WINDIR%\prefetch\test_msvcp90.exe-29c5da51.pf
  • %WINDIR%\prefetch\wevtutil.exe-ef5861c4.pf
  • %WINDIR%\prefetch\winword.exe-778f7c2b.pf
  • %WINDIR%\prefetch\wmiadap.exe-f8dfdfa2.pf
  • %WINDIR%\prefetch\wmiprvse.exe-1628051c.pf
  • %WINDIR%\prefetch\wmiprvse.exe-6768a320.pf
  • %WINDIR%\prefetch\wmplayer.exe-26c72a86.pf
  • %WINDIR%\prefetch\test_msvcp90_x64.exe-cf1ecfbe.pf
  • %WINDIR%\prefetch\test_msvcp140_x64.exe-361d99d2.pf
  • %WINDIR%\prefetch\logonui.exe-09140401.pf
  • %WINDIR%\prefetch\test_msvcp110_x64.exe-600927fb.pf
  • %WINDIR%\prefetch\test_msvcp120.exe-5e9c35c1.pf
  • %WINDIR%\prefetch\test_msvcp120.exe-9f64d86b.pf
  • %WINDIR%\prefetch\test_msvcp120d.exe-5e6bdb07.pf
  • %WINDIR%\prefetch\test_msvcp110.exe-f929c484.pf
  • %WINDIR%\prefetch\test_msvcp110d.exe-dd6c4bd2.pf
  • %WINDIR%\prefetch\test_msvcp110d.exe-6c7e6cb8.pf
  • %WINDIR%\prefetch\test_msvcp120d.exe-ed7dfbed.pf
  • %WINDIR%\prefetch\test_msvcp140d.exe-606af971.pf
  • %WINDIR%\prefetch\test_msvcp140d_x64.exe-3e4f6ade.pf
  • %WINDIR%\prefetch\test_msvcp140d_xp.exe-b04bc36c.pf
  • %WINDIR%\prefetch\test_msvcp140xp.exe-6d280b1d.pf
  • %WINDIR%\prefetch\test_msvcp120d_x64.exe-b16c3bb4.pf
  • %WINDIR%\prefetch\test_msvcp120xp.exe-d7d05439.pf
  • %WINDIR%\prefetch\test_msvcp140.exe-6a49bae5.pf
  • %WINDIR%\prefetch\ngen.exe-7900743e.pf
  • %WINDIR%\prefetch\netsh.exe-f1b6da12.pf
  • %WINDIR%\prefetch\mstsc.exe-76a46e8a.pf
  • %WINDIR%\prefetch\conhost.exe-1f3e9d7e.pf
  • %WINDIR%\prefetch\control.exe-817f8f1d.pf
  • %WINDIR%\prefetch\dbgclr.exe-ad18e06e.pf
  • %WINDIR%\prefetch\defrag.exe-588f90ad.pf
  • %WINDIR%\prefetch\dexplore.exe-1749d792.pf
  • %WINDIR%\prefetch\dllhost.exe-5e46fa0d.pf
  • %WINDIR%\prefetch\dllhost.exe-7faa2e4c.pf
  • %WINDIR%\prefetch\firefox.exe-18acfcff.pf
  • %WINDIR%\prefetch\dllhost.exe-861f96f8.pf
  • %WINDIR%\prefetch\dllhost.exe-b2eb1806.pf
  • %WINDIR%\prefetch\dllhost.exe-d58da3a6.pf
  • %WINDIR%\prefetch\dllhost.exe-ecb71776.pf
  • %WINDIR%\prefetch\dotnetfx.exe-fe16be11.pf
  • %WINDIR%\prefetch\drvinst.exe-4cb4314a.pf
  • %WINDIR%\prefetch\cmd.exe-4a81b364.pf
  • %WINDIR%\prefetch\bcssync.exe-3f6c64a2.pf
  • %WINDIR%\prefetch\1.exe-bf9d2cef.pf
  • %WINDIR%\prefetch\agglglobalhistory.db
  • %WINDIR%\prefetch\audiodg.exe-bdfd3029.pf
  • %WINDIR%\prefetch\aspnet_regiis.exe-b76f1ad7.pf
  • %WINDIR%\prefetch\arh.exe-f07e6c2c.pf
  • %WINDIR%\prefetch\agrobust.db
  • %WINDIR%\prefetch\aggluad_s-1-5-21-1960123792-2022915161-3775307078-1001.db
  • %WINDIR%\prefetch\dllhost.exe-766398d2.pf
  • %WINDIR%\prefetch\aggluad_p_s-1-5-21-1960123792-2022915161-3775307078-1001.db
  • %WINDIR%\prefetch\explorer.exe-a80e4f97.pf
  • %WINDIR%\prefetch\agglfaulthistory.db
  • %WINDIR%\prefetch\agcx_sc4.db
  • %WINDIR%\prefetch\agapplaunch.db
  • %WINDIR%\prefetch\addinutil.exe-fef23417.pf
  • %WINDIR%\prefetch\acrord32.exe-acf2947d.pf
  • %WINDIR%\prefetch\agglfgapphistory.db
  • %WINDIR%\prefetch\excel.exe-53a22446.pf
  • %WINDIR%\prefetch\flashplayerupdateservice.exe-216d9c35.pf
  • %WINDIR%\prefetch\mscorsvw.exe-57d17daf.pf
  • %WINDIR%\prefetch\msdtc.exe-cc1dec77.pf
  • %WINDIR%\prefetch\msi419f.tmp-b24cc418.pf
  • %WINDIR%\prefetch\msi6837.tmp-63debe2c.pf
  • %WINDIR%\prefetch\msidf38.tmp-4231cf8d.pf
  • %WINDIR%\prefetch\msconfig.exe-3a52734e.pf
  • %WINDIR%\prefetch\iexplore.exe-4b6c9213.pf
  • %WINDIR%\prefetch\mscorsvw.exe-c3c515bd.pf
  • %WINDIR%\prefetch\msieb32.tmp-a0d60608.pf
  • %WINDIR%\prefetch\msohtmed.exe-35a8ca79.pf
  • %WINDIR%\prefetch\msohtmed.exe-68e5ab1e.pf
  • %WINDIR%\prefetch\msoxmled.exe-e473a01d.pf
  • %WINDIR%\prefetch\mstsc.exe-5283258e.pf
  • %WINDIR%\prefetch\msiexec.exe-a2d55cb6.pf
  • %WINDIR%\prefetch\msiexec.exe-e09a077a.pf
  • %WINDIR%\prefetch\msif1a9.tmp-fa1ca0e9.pf
  • %WINDIR%\prefetch\wermgr.exe-0f2ac88c.pf
  • %WINDIR%\prefetch\wmpnscfg.exe-fc0d39bf.pf
  • %WINDIR%\prefetch\mmc.exe-f5dc4f82.pf
  • %WINDIR%\prefetch\mmc.exe-f39cded6.pf
  • %WINDIR%\prefetch\mmc.exe-53159585.pf
  • %WINDIR%\prefetch\migpolwin.exe-79e606fc.pf
  • %WINDIR%\prefetch\microsoft toolkit.exe-9dae6a40.pf
  • %WINDIR%\prefetch\mdm.exe-ea9906df.pf
  • %WINDIR%\prefetch\manageddbgca.exe-6ea1439b.pf
  • %WINDIR%\prefetch\mofcomp.exe-fde76efc.pf
  • %WINDIR%\prefetch\layout.ini
  • %WINDIR%\prefetch\launcher.exe-e41e51ee.pf
  • %WINDIR%\prefetch\kmsnano_setup.tmp-11a1562c.pf
  • %WINDIR%\prefetch\kmsnano_setup.exe-631a87c6.pf
  • %WINDIR%\prefetch\javaw.exe-dccf0ab8.pf
  • %WINDIR%\prefetch\ipconfig.exe-912f3d5b.pf
  • %WINDIR%\prefetch\install.exe-455f2d9b.pf
  • %WINDIR%\prefetch\mofcomp.exe-8fe3d558.pf
  • %WINDIR%\prefetch\_iu14d2n.tmp-74616ced.pf
Modifies the following files
Substitutes the following files
  • %LOCALAPPDATA%\Microsoft\Windows\<INETFILES>\Content.IE5\desktop.ini
  • %LOCALAPPDATA%\Microsoft\Windows\History\History.IE5\desktop.ini
  • %APPDATA%\Macromedia\Flash Player\macromedia.com\support\flashplayer\sys\settings.sol
Miscellaneous
Searches for the following windows
  • ClassName: '' WindowName: 'Unique Loader Generator'
  • ClassName: 'InstalledDriversList' WindowName: ''
  • ClassName: 'RegFromApp' WindowName: ''
  • ClassName: 'OpenSaveFilesView' WindowName: ''
  • ClassName: 'OpenedFilesView' WindowName: ''
  • ClassName: '' WindowName: 'TeamViewer'
  • ClassName: 'LastActivityView' WindowName: ''
  • ClassName: 'ProcessThreadsView' WindowName: ''
  • ClassName: 'OSFORENSICS' WindowName: ''
  • ClassName: 'dbgviewClass' WindowName: ''
  • ClassName: 'SocketSniff' WindowName: ''
  • ClassName: 'TTOTAL_CMD' WindowName: ''
  • ClassName: 'DriverView00' WindowName: ''
  • ClassName: 'HTTPNetworkSniffer' WindowName: ''
  • ClassName: '' WindowName: 'WinAPIOverride32'
  • ClassName: '' WindowName: 'WinAPIOverride64'
  • ClassName: 'NetworkTrafficView' WindowName: ''
  • ClassName: 'ProcessHacker' WindowName: ''
  • ClassName: 'SND 2.2' WindowName: ''
  • ClassName: '' WindowName: 'Process History'
  • ClassName: '' WindowName: 'Security Process Explorer 1.6'
  • ClassName: '' WindowName: 'COMODO KillSwitch'
  • ClassName: 'RegEdit_RegEdit' WindowName: 'Registry Editor'
  • ClassName: '' WindowName: 'Registry Finder - [Local Registry]'
  • ClassName: 'ExecutedProgramsList' WindowName: ''
  • ClassName: 'PreviousFilesRecovery' WindowName: ''
  • ClassName: 'ShadowCopyView' WindowName: ''
  • ClassName: 'RegistryChangesView' WindowName: ''
  • ClassName: '' WindowName: 'NetLimiter 4'
  • ClassName: '' WindowName: 'Belkasoft Live RAM Capturer'
  • ClassName: '#32770' WindowName: 'Windows Task Manager'
  • ClassName: 'TaskManagerWindow' WindowName: 'Task Manager'
  • ClassName: '' WindowName: 'JetBrains dotPeek'
  • ClassName: '' WindowName: 'System Explorer 7.0.0.5356'
  • ClassName: '' WindowName: 'ILSpy'
  • ClassName: '' WindowName: 'Task Explorer II'
  • ClassName: '' WindowName: 'ShadowExplorer'
  • ClassName: '' WindowName: 'X64 Net Dumper by CodeCracker / SnD'
  • ClassName: '' WindowName: 'LiveDump - Memory Dumper by Cra0'
  • ClassName: '' WindowName: 'Charles 4.2.1 - Session 1'
  • ClassName: '' WindowName: 'Signature Explorer II'
  • ClassName: '' WindowName: 'Charles 4.2.1 - Session 1 *'
  • ClassName: '' WindowName: 'CFF Explorer VIII'
  • ClassName: '' WindowName: 'Cisco Packet Tracer'
  • ClassName: '' WindowName: 'PE Detective'
  • ClassName: '' WindowName: 'PacketsDump'
  • ClassName: '' WindowName: 'Driver List 1.0.2 - by Daniel Pistelli'
  • ClassName: 'HeapMemView' WindowName: ''
  • ClassName: 'CapsaMainFrameClass' WindowName: ''
  • ClassName: 'ProcessActivityView' WindowName: ''
  • ClassName: 'DeviceIOView' WindowName: ''
  • ClassName: 'FolderChangesView' WindowName: ''
  • ClassName: '' WindowName: 'stud_PE'
  • ClassName: '' WindowName: 'MegaDumper 1.0 by CodeCracker / SnD'
  • ClassName: '' WindowName: '.NET Generic Unpacker'
  • ClassName: '' WindowName: 'Run Sandboxed'
  • ClassName: 'Window' WindowName: 'Cheat Engine 6.7'
  • ClassName: 'Qt5QWindowIcon' WindowName: 'Capturing from Local Area Connection'
  • ClassName: 'Qt5QWindowIcon' WindowName: '*Ethernet'
  • ClassName: 'Qt5QWindowIcon' WindowName: '*Local Area Connection'
  • ClassName: 'OllyICE' WindowName: ''
  • ClassName: '' WindowName: 'Synkron'
  • ClassName: '' WindowName: 'sigbench'
  • ClassName: '' WindowName: 'NetResident Console'
  • ClassName: '' WindowName: 'NetResident Database Manager'
  • ClassName: 'PiriformSpeccy' WindowName: ''
  • ClassName: 'SimpleProgramDebugger' WindowName: ''
  • ClassName: 'ExplorerXP Class' WindowName: ''
  • ClassName: 'Qt5QWindowIcon' WindowName: 'GlassWire'
  • ClassName: '' WindowName: 'NetworkMiner 2.2'
  • ClassName: '' WindowName: 'Cain'
  • ClassName: '' WindowName: 'CommView'
  • ClassName: '' WindowName: 'CommView - Evaluation Version'
  • ClassName: 'RamMapClass' WindowName: ''
  • ClassName: '' WindowName: 'DeltaCopy Server'
  • ClassName: '' WindowName: 'DeltaCopy'
  • ClassName: '' WindowName: 'Toucan'
  • ClassName: '' WindowName: 'SyncFolders'
  • ClassName: 'WinDbgFrameClass' WindowName: ''
  • ClassName: 'Qt5QWindowIcon' WindowName: 'Capturing from Ethernet'
  • ClassName: '' WindowName: 'Magnet RAM Capture'
  • ClassName: '' WindowName: 'HideToolz'
  • ClassName: '' WindowName: 'HideToolz3.0'
  • ClassName: '' WindowName: 'WireEdit'
  • ClassName: 'QWidget' WindowName: 'Boomerang'
  • ClassName: '' WindowName: 'Binary Ninja'
  • ClassName: '' WindowName: 'Fiddler Web Debugger'
  • ClassName: '' WindowName: 'IDA v6.8.150423'
  • ClassName: '' WindowName: 'SmartSniff'
  • ClassName: '' WindowName: 'x32dbg'
  • ClassName: '' WindowName: 'x64dbg'
  • ClassName: 'ID' WindowName: ''
  • ClassName: 'ObsidianGUI' WindowName: ''
  • ClassName: '' WindowName: 'StCroixSkipper\s USN Journal Explorer v1.1 (VAC Edition)'
  • ClassName: '' WindowName: 'Win64AST 1.1 beta1'
  • ClassName: '' WindowName: 'VAC3 Sections Viewer & Dumper | Credits : Simon-Benyo - forcon'
  • ClassName: '' WindowName: 'WIN64AST 1.1 beta8'
  • ClassName: 'Rock Debugger' WindowName: ''
  • ClassName: 'Zeta Debugger' WindowName: ''
  • ClassName: '' WindowName: 'Monitoring - API Monitor v2 32-bit (Administrator)'
  • ClassName: 'WinObjWClass' WindowName: ''
  • ClassName: 'WinObjAdvClass' WindowName: ''
  • ClassName: 'CNetmonMainFrame' WindowName: ''
  • ClassName: 'WinListerMain' WindowName: ''
  • ClassName: '' WindowName: 'Microsoft Message Analyzer'
  • ClassName: '' WindowName: 'ArkDasm v1.1.0'
  • ClassName: '' WindowName: 'API Monitor v2 32-bit (Administrator)'
  • ClassName: '' WindowName: 'Sandboxie Control'
  • ClassName: 'SSTap_WND_Class_150213' WindowName: ''
Creates and executes the following
  • '%WINDIR%\syswow64\rundll32.exe' InetCpl.cpl,ClearMyTracksByProcess 255' (with hidden window)
Executes the following
  • '%WINDIR%\syswow64\rundll32.exe' InetCpl.cpl,ClearMyTracksByProcess 255
  • '%ProgramFiles(x86)%\internet explorer\iexplore.exe' -ResetDestinationList

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  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
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