Worm.Win32.PYFILEDEL.B
PLATFORM:
Windows
OVERALL RISK RATING:
DAMAGE POTENTIAL:
DISTRIBUTION POTENTIAL:
REPORTED INFECTION:
Threat Type: Worm
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
TECHNICAL DETAILS
File Size:
4,730,812 bytes
File Type:
EXE
Memory Resident:
Yes
Initial Samples Received Date:
17 Jan 2020
Arrival Details
This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Worm adds the following processes:
- tasklist.exe /fo csv
- %System Root%\boots\syswin.exe
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
It creates the following folders:
- %System Root%\boots
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Autostart Technique
This Worm adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
syswin = "%System Root%\boots\syswin.exe"
Other System Modifications
This Worm modifies the following file(s):
- %Program Files%\Microsoft Office\Office12\MSOHTMED.EXE
- %Program Files%\Microsoft Office\Office12\SETLANG.EXE
- %Program Files%\Microsoft Office\Office12\GrooveMigrator.exe
- %Program Files%\Microsoft Office\Office12\MSTORE.EXE
- %Program Files%\Microsoft Office\Office12\DSSM.EXE
- %Program Files%\Microsoft Office\Office12\MSTORDB.EXE
- %Program Files%\Microsoft Office\Office12\OIS.EXE
- %Program Files%\Microsoft Office\Office12\DRAT.EXE
- %Program Files%\Microsoft Office\Office12\SELFCERT.EXE
- %Program Files%\Internet Explorer\iexplore.exe
- %Program Files%\Microsoft Office\Office12\SCANOST.EXE
- %Program Files%\Microsoft Office\Office12\CLVIEW.EXE
- %Program Files%\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE
- %Program Files%\Microsoft Office\Office12\REGFORM.EXE
- %Program Files%\Common Files\microsoft shared\MSInfo\msinfo32.exe
- %Program Files%\Microsoft Office\Office12\WINWORD.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTE.EXE
- %Program Files%\Microsoft Office\Office12\OUTLOOK.EXE
- %Program Files%\Windows Media Player\wmplayer.exe
- %Program Files%\Common Files\microsoft shared\MSInfo\OINFOP12.EXE
- %Program Files%\Microsoft Office\Office12\POWERPNT.EXE
- %Program Files%\Microsoft Office\Office12\SCANPST.EXE
- %Program Files%\Microsoft Office\Office12\VPREVIEW.EXE
- %Program Files%\Microsoft Office\Office12\PPTVIEW.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ODSERV.EXE
- %Program Files%\Common Files\microsoft shared\Source Engine\OSE.EXE
- %Program Files%\Microsoft Office\Office12\MSPUB.EXE
- %Program Files%\Microsoft Office\Office12\excelcnv.exe
- %Program Files%\Microsoft Office\Office12\1033\ONELEV.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSE7.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTEM.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOICONS.EXE
- %Program Files%\Microsoft Office\Office12\CNFNOT32.EXE
- %Program Files%\Windows NT\Accessories\wordpad.exe
- %Program Files%\Microsoft Office\Office12\MSQRY32.EXE
- %Program Files%\Microsoft Office\Office12\ACCICONS.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ACECNFLT.EXE
- %Program Files%\Microsoft Office\Office12\MSACCESS.EXE
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It deletes the following files:
- %Program Files%\Microsoft Office\Office12\MSOHTMED.EXE
- %System Root%\Program Files\VMware\VMware Tools\VSock SDK\bin\win64\instutil32.exe
- %System Root%\boots\syswin.exe
- %Program Files%\Microsoft Office\Office12\OUTLOOK.EXE
- %Program Files%\Microsoft Office\Office12\SETLANG.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe
- %Program Files%\Microsoft Office\Office12\GrooveMigrator.exe
- %Program Files%\Common Files\Adobe\ARM\1.0\AdobeARMHelper.exe
- %Program Files%\Microsoft Office\Office12\MSTORE.EXE
- %Program Files%\Common Files\microsoft shared\DW\DW20.EXE
- %Program Files%\Microsoft Office\Office12\DSSM.EXE
- %System Root%\Program Files\VMware\VMware Tools\VMwareXferlogs.exe
- %Program Files%\Common Files\Java\Java Update\jucheck.exe
- %Program Files%\Microsoft Office\Office12\MSTORDB.EXE
- %Program Files%\Microsoft Office\Office12\OIS.EXE
- %Program Files%\Common Files\microsoft shared\MSInfo\OINFOP12.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe
- %Program Files%\Microsoft Office\Office12\POWERPNT.EXE
- %Program Files%\Common Files\Java\Java Update\jusched.exe
- %Program Files%\Microsoft Office\Office12\EXCEL.EXE
- %Program Files%\Microsoft Office\Office12\SCANPST.EXE
- %Program Files%\Microsoft Office\Office12\DRAT.EXE
- %Program Files%\Microsoft Office\Office12\VPREVIEW.EXE
- %Program Files%\Microsoft Office\Office12\PPTVIEW.EXE
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateCore.exe
- %Program Files%\Common Files\microsoft shared\OFFICE12\ODSERV.EXE
- %Program Files%\Microsoft Office\Office12\SELFCERT.EXE
- %Program Files%\Microsoft Office\Office12\MSPUB.EXE
- %Program Files%\Microsoft Office\Office12\excelcnv.exe
- %Program Files%\Microsoft Office\Office12\1033\ONELEV.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSE7.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTEM.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOICONS.EXE
- %Program Files%\Microsoft Office\Office12\CNFNOT32.EXE
- %Program Files%\Microsoft Office\Office12\SCANOST.EXE
- %Program Files%\Microsoft Office\Office12\CLVIEW.EXE
- %Program Files%\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE
- %System Root%\Program Files\Mozilla Firefox\maintenanceservice.exe
- %Program Files%\Microsoft Office\Office12\MSQRY32.EXE
- %System Root%\Program Files\Java\jre1.8.0_144\bin\kinit.exe
- %Program Files%\Microsoft Office\Office12\REGFORM.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\Eula.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\reader_sl.exe
- %Program Files%\Microsoft Office\Office12\ACCICONS.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\Office Setup Controller\SETUP.EXE
- %Program Files%\Microsoft Office\Office12\WINWORD.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ACECNFLT.EXE
- %Program Files%\Common Files\microsoft shared\DW\DWTRIG20.EXE
- %Program Files%\Microsoft Office\Office12\MSACCESS.EXE
- %System Root%\Program Files\Microsoft Games\Hearts\Hearts.exe
- %System Root%\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe
- %Program Files%\Microsoft Office\Office12\ONENOTE.EXE
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Dropping Routine
This Worm drops the following files:
- %Program Files%\Common Files\microsoft shared\ink\TabTip32.exe
- %System Root%\Program Files\Mozilla Firefox\updated\plugin-hang-ui.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\orbd.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe
- %Program Files%\Windows Photo Viewer\ImagingDevices.exe
- %System Root%\Program Files\Mozilla Firefox\updated\plugin-container.exe
- %System Root%\Program Files\Windows Media Player\wmpnscfg.exe
- %Program Files%\Windows Media Player\WMPDMC.exe
- %System Root%\Program Files\Mozilla Firefox\updater.exe
- %System Root%\Program Files\Windows Defender\MpCmdRun.exe
- %All Users Profile%\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\setup.exe
- %System Root%\Program Files\Windows NT\Accessories\wordpad.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
- %System Root%\Program Files\VMware\VMware Tools\vmtoolsd.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\java.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\MSInfo\msinfo32.exe
- %System Root%\Program Files\Windows Mail\wabmig.exe
- %System Root%\Program Files\Windows Media Player\wmpenc.exe
- %System Root%\Program Files\Windows Media Player\wmprph.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe
- %System Root%\Program Files\Internet Explorer\iediagcmd.exe
- F:\data\data.exe
- %System Root%\Program Files\Windows Media Player\wmpnetwk.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\rmiregistry.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\Installer\chrmstp.exe
- %Program Files%\Internet Explorer\ieinstal.exe
- %Program Files%\Windows Mail\wabmig.exe
- %System Root%\Program Files\Windows Sidebar\sidebar.exe
- %System Root%\Program Files\Mozilla Firefox\updated\firefox.exe
- %Program Files%\Common Files\Adobe\ARM\1.0\armsvc.exe
- %System Root%\Program Files\Windows Photo Viewer\ImagingDevices.exe
- %System Root%\Program Files\Microsoft Games\Chess\Chess.exe
- %System Root%\Program Files\VMware\VMware Tools\VMToolsHookProc.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareHostOpen.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\elevation_service.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\rmid.exe
- %Program Files%\Windows Media Player\wmpshare.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\java-rmi.exe
- %System Root%\Program Files\VMware\VMware Tools\zip.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\notification_helper.exe
- %System Root%\Program Files\VMware\VMware Tools\unzip.exe
- %System Root%\Program Files\Windows Media Player\WMPDMC.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\nacl_irt_x86_64.nexe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\ktab.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\policytool.exe
- %Program Files%\Common Files\microsoft shared\VSTA\8.0\x86\vsta_ep32.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe
- %Program Files%\Windows Media Player\wmpconfig.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateBroker.exe
- %System Root%\Program Files\ImDisk\ImDiskTk-svc.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\wow_helper.exe
- %System Root%\Program Files\Mozilla Firefox\updated\crashreporter.exe
- %System Root%\Program Files\Windows Media Player\wmplayer.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateComRegisterShell64.exe
- %System Root%\Program Files\Mozilla Firefox\pingsender.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe
- %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
- %Program Files%\Internet Explorer\ielowutil.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\unpack200.exe
- %System Root%\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe
- %Program Files%\Google\Chrome\Application\chrome_proxy.exe
- %Program Files%\Common Files\Java\Java Update\jaureg.exe
- %System Root%\Program Files\Mozilla Firefox\plugin-hang-ui.exe
- %Program Files%\Mozilla Maintenance Service\maintenanceservice.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleCrashHandler.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jjs.exe
- %Program Files%\Windows Mail\WinMail.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe
- %System Root%\Program Files\Internet Explorer\iexplore.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareCplLauncher.exe
- %System Root%\Program Files\Windows Media Player\WMPSideShowGadget.exe
- F:\data.exe
- %System Root%\Program Files\Mozilla Firefox\firefox.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\ConvertInkStore.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleCrashHandler64.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jp2launcher.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javaw.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\pack200.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javaws.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\servertool.exe
- %System Root%\Program Files\Windows Mail\wab.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javacpl.exe
- %System Root%\Program Files\Windows Defender\MSASCui.exe
- %System Root%\Program Files\Mozilla Firefox\crashreporter.exe
- F:\data\photos.exe
- %System Root%\Program Files\Mozilla Firefox\uninstall\helper.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\Installer\setup.exe
- %Program Files%\Common Files\microsoft shared\ink\mip.exe
- %Program Files%\Windows Mail\wab.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe
- %Program Files%\Mozilla Maintenance Service\Uninstall.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareTray.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jabswitch.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\mip.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\keytool.exe
- F:\data\photos\photos.exe
- %System Root%\Program Files\Internet Explorer\ielowutil.exe
- %System Root%\Program Files\Windows Media Player\wmlaunch.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\ShapeCollector.exe
- %System Root%\Program Files\Windows Media Player\wmpshare.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdate.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\ssvagent.exe
- %System Root%\Program Files\VMware\VMware Tools\rpctool.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\klist.exe
- %System Root%\Program Files\Windows Mail\WinMail.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateOnDemand.exe
- %System Root%\Program Files\Mozilla Firefox\updated\updater.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe
- %System Root%\Program Files\Windows Journal\PDIALOG.exe
- %Program Files%\Internet Explorer\ExtExport.exe
- %System Root%\Program Files\Windows Media Player\wmpconfig.exe
- %Program Files%\Windows Media Player\wmprph.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateSetup.exe
- %Program Files%\Common Files\microsoft shared\ink\pipanel.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\InputPersonalization.exe
- %System Root%\Program Files\Internet Explorer\ieinstal.exe
- %System Root%\Program Files\ImDisk\RamDyn.exe
- %Program Files%\Google\Update\GoogleUpdate.exe
- %System Root%\Program Files\VMware\VMware Tools\comreg.exe
- %System Root%\Program Files\Windows Media Player\setup_wm.exe
- %System Root%\Program Files\Windows Journal\Journal.exe
- %System Root%\Program Files\Mozilla Firefox\updated\uninstall\helper.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe
- %System Root%\Program Files\Mozilla Firefox\updated\maintenanceservice.exe
- %Program Files%\Windows Media Player\wmlaunch.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateWebPlugin.exe
- %System Root%\Program Files\DVD Maker\DVDMaker.exe
- %Program Files%\Windows Media Player\wmpenc.exe
- %System Root%\Program Files\Microsoft Games\FreeCell\FreeCell.exe
- %System Root%\Program Files\Microsoft Games\Purble Place\PurblePlace.exe
- %System Root%\Program Files\Mozilla Firefox\plugin-container.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\tnameserv.exe
- %Program Files%\Google\Chrome\Application\chrome.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Windows Sidebar\sidebar.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\InkWatson.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\FlickLearningWizard.exe
- %System Root%\boots\syswin.exe
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000(32-bit), Server 2003(32-bit), XP, Vista(64-bit), 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit) , or C:\Program Files (x86) in Windows XP(64-bit), Vista(64-bit), 7(64-bit), 8(64-bit), 8.1(64-bit), 2008(64-bit), 2012(64-bit) and 10(64-bit).. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.. %All Users Profile% is the common user's profile folder, which is usually C:\Documents and Settings\All Users on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\ProgramData on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit). )
This report is generated via an automated analysis system.
SOLUTION
Minimum Scan Engine:
9.850
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 users must disable System Restore to allow full scanning of their computers.
Step 2
Restart in Safe Mode
[ Learn More ]
Step 3
Identify and terminate files detected as Worm.Win32.PYFILEDEL.B
[ Learn More ]
- Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
- If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
- If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.
Step 4
Delete this registry value
[ Learn More ]
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- syswin = "%System Root%\boots\syswin.exe"
Step 5
Search and delete these components
[ Learn More ]
There may be some components that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result. - %Program Files%\Common Files\microsoft shared\ink\TabTip32.exe
- %System Root%\Program Files\Mozilla Firefox\updated\plugin-hang-ui.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\orbd.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroLayoutRecognizer\AcroLayoutRecognizer.exe
- %Program Files%\Windows Photo Viewer\ImagingDevices.exe
- %System Root%\Program Files\Mozilla Firefox\updated\plugin-container.exe
- %System Root%\Program Files\Windows Media Player\wmpnscfg.exe
- %Program Files%\Windows Media Player\WMPDMC.exe
- %System Root%\Program Files\Mozilla Firefox\updater.exe
- %System Root%\Program Files\Windows Defender\MpCmdRun.exe
- %All Users Profile%\Adobe\Setup\{AC76BA86-7AD7-1033-7B44-AC0F074E4100}\setup.exe
- %System Root%\Program Files\Windows NT\Accessories\wordpad.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroRd32.exe
- %System Root%\Program Files\VMware\VMware Tools\vmtoolsd.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\java.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\MSInfo\msinfo32.exe
- %System Root%\Program Files\Windows Mail\wabmig.exe
- %System Root%\Program Files\Windows Media Player\wmpenc.exe
- %System Root%\Program Files\Windows Media Player\wmprph.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroTextExtractor.exe
- %System Root%\Program Files\Internet Explorer\iediagcmd.exe
- F:\data\data.exe
- %System Root%\Program Files\Windows Media Player\wmpnetwk.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroBroker.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\rmiregistry.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\Installer\chrmstp.exe
- %Program Files%\Internet Explorer\ieinstal.exe
- %Program Files%\Windows Mail\wabmig.exe
- %System Root%\Program Files\Windows Sidebar\sidebar.exe
- %System Root%\Program Files\Mozilla Firefox\updated\firefox.exe
- %Program Files%\Common Files\Adobe\ARM\1.0\armsvc.exe
- %System Root%\Program Files\Windows Photo Viewer\ImagingDevices.exe
- %System Root%\Program Files\Microsoft Games\Chess\Chess.exe
- %System Root%\Program Files\VMware\VMware Tools\VMToolsHookProc.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareHostOpen.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\elevation_service.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\rmid.exe
- %Program Files%\Windows Media Player\wmpshare.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\java-rmi.exe
- %System Root%\Program Files\VMware\VMware Tools\zip.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\notification_helper.exe
- %System Root%\Program Files\VMware\VMware Tools\unzip.exe
- %System Root%\Program Files\Windows Media Player\WMPDMC.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\nacl_irt_x86_64.nexe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\ktab.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\policytool.exe
- %Program Files%\Common Files\microsoft shared\VSTA\8.0\x86\vsta_ep32.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\Browser\WCChromeExtn\WCChromeNativeMessagingHost.exe
- %Program Files%\Windows Media Player\wmpconfig.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateBroker.exe
- %System Root%\Program Files\ImDisk\ImDiskTk-svc.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\wow_helper.exe
- %System Root%\Program Files\Mozilla Firefox\updated\crashreporter.exe
- %System Root%\Program Files\Windows Media Player\wmplayer.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateComRegisterShell64.exe
- %System Root%\Program Files\Mozilla Firefox\pingsender.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\TabTip.exe
- %System Root%\$Recycle.Bin\S-1-5-21-2407829820-1079796033-203259571-500\$IROWNQH.exe
- %Program Files%\Internet Explorer\ielowutil.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\unpack200.exe
- %System Root%\Program Files\Microsoft Games\Minesweeper\MineSweeper.exe
- %Program Files%\Google\Chrome\Application\chrome_proxy.exe
- %Program Files%\Common Files\Java\Java Update\jaureg.exe
- %System Root%\Program Files\Mozilla Firefox\plugin-hang-ui.exe
- %Program Files%\Mozilla Maintenance Service\maintenanceservice.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleCrashHandler.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jjs.exe
- %Program Files%\Windows Mail\WinMail.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroRd32Info.exe
- %System Root%\Program Files\Internet Explorer\iexplore.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareCplLauncher.exe
- %System Root%\Program Files\Windows Media Player\WMPSideShowGadget.exe
- F:\data.exe
- %System Root%\Program Files\Mozilla Firefox\firefox.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\ConvertInkStore.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleCrashHandler64.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jp2launcher.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Backgammon\bckgzm.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javaw.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\pack200.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javaws.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\servertool.exe
- %System Root%\Program Files\Windows Mail\wab.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\javacpl.exe
- %System Root%\Program Files\Windows Defender\MSASCui.exe
- %System Root%\Program Files\Mozilla Firefox\crashreporter.exe
- F:\data\photos.exe
- %System Root%\Program Files\Mozilla Firefox\uninstall\helper.exe
- %Program Files%\Google\Chrome\Application\73.0.3683.103\Installer\setup.exe
- %Program Files%\Common Files\microsoft shared\ink\mip.exe
- %Program Files%\Windows Mail\wab.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrServicesUpdater.exe
- %Program Files%\Mozilla Maintenance Service\Uninstall.exe
- %System Root%\Program Files\VMware\VMware Tools\VMwareTray.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\jabswitch.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\AcroCEF\RdrCEF.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\mip.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\keytool.exe
- F:\data\photos\photos.exe
- %System Root%\Program Files\Internet Explorer\ielowutil.exe
- %System Root%\Program Files\Windows Media Player\wmlaunch.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\ShapeCollector.exe
- %System Root%\Program Files\Windows Media Player\wmpshare.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdate.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\ssvagent.exe
- %System Root%\Program Files\VMware\VMware Tools\rpctool.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\klist.exe
- %System Root%\Program Files\Windows Mail\WinMail.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateOnDemand.exe
- %System Root%\Program Files\Mozilla Firefox\updated\updater.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Spades\shvlzm.exe
- %System Root%\Program Files\Windows Journal\PDIALOG.exe
- %Program Files%\Internet Explorer\ExtExport.exe
- %System Root%\Program Files\Windows Media Player\wmpconfig.exe
- %Program Files%\Windows Media Player\wmprph.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateSetup.exe
- %Program Files%\Common Files\microsoft shared\ink\pipanel.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\InputPersonalization.exe
- %System Root%\Program Files\Internet Explorer\ieinstal.exe
- %System Root%\Program Files\ImDisk\RamDyn.exe
- %Program Files%\Google\Update\GoogleUpdate.exe
- %System Root%\Program Files\VMware\VMware Tools\comreg.exe
- %System Root%\Program Files\Windows Media Player\setup_wm.exe
- %System Root%\Program Files\Windows Journal\Journal.exe
- %System Root%\Program Files\Mozilla Firefox\updated\uninstall\helper.exe
- %System Root%\Program Files\Microsoft Games\Multiplayer\Checkers\chkrzm.exe
- %System Root%\Program Files\Mozilla Firefox\updated\maintenanceservice.exe
- %Program Files%\Windows Media Player\wmlaunch.exe
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateWebPlugin.exe
- %System Root%\Program Files\DVD Maker\DVDMaker.exe
- %Program Files%\Windows Media Player\wmpenc.exe
- %System Root%\Program Files\Microsoft Games\FreeCell\FreeCell.exe
- %System Root%\Program Files\Microsoft Games\Purble Place\PurblePlace.exe
- %System Root%\Program Files\Mozilla Firefox\plugin-container.exe
- %System Root%\Program Files\Java\jre1.8.0_144\bin\tnameserv.exe
- %Program Files%\Google\Chrome\Application\chrome.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Windows Sidebar\sidebar.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\InkWatson.exe
- %System Root%\Program Files\Common Files\Microsoft Shared\ink\FlickLearningWizard.exe
- %System Root%\boots\syswin.exe
Step 6
Search and delete this folder
[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden folders in the search result. - %System Root%\boots
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.Win32.PYFILEDEL.B. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
Step 8
Restore deleted/modified files and/or registry entries from backup
*Note: Only Microsoft-related files/keys/values will be restored. If this malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- %Program Files%\Microsoft Office\Office12\MSOHTMED.EXE
- %Program Files%\Microsoft Office\Office12\SETLANG.EXE
- %Program Files%\Microsoft Office\Office12\GrooveMigrator.exe
- %Program Files%\Microsoft Office\Office12\MSTORE.EXE
- %Program Files%\Microsoft Office\Office12\DSSM.EXE
- %Program Files%\Microsoft Office\Office12\MSTORDB.EXE
- %Program Files%\Microsoft Office\Office12\OIS.EXE
- %Program Files%\Microsoft Office\Office12\DRAT.EXE
- %Program Files%\Microsoft Office\Office12\SELFCERT.EXE
- %Program Files%\Internet Explorer\iexplore.exe
- %Program Files%\Microsoft Office\Office12\SCANOST.EXE
- %Program Files%\Microsoft Office\Office12\CLVIEW.EXE
- %Program Files%\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE
- %Program Files%\Microsoft Office\Office12\REGFORM.EXE
- %Program Files%\Common Files\microsoft shared\MSInfo\msinfo32.exe
- %Program Files%\Microsoft Office\Office12\WINWORD.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTE.EXE
- %Program Files%\Microsoft Office\Office12\OUTLOOK.EXE
- %Program Files%\Windows Media Player\wmplayer.exe
- %Program Files%\Common Files\microsoft shared\MSInfo\OINFOP12.EXE
- %Program Files%\Microsoft Office\Office12\POWERPNT.EXE
- %Program Files%\Microsoft Office\Office12\SCANPST.EXE
- %Program Files%\Microsoft Office\Office12\VPREVIEW.EXE
- %Program Files%\Microsoft Office\Office12\PPTVIEW.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ODSERV.EXE
- %Program Files%\Common Files\microsoft shared\Source Engine\OSE.EXE
- %Program Files%\Microsoft Office\Office12\MSPUB.EXE
- %Program Files%\Microsoft Office\Office12\excelcnv.exe
- %Program Files%\Microsoft Office\Office12\1033\ONELEV.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSE7.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTEM.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOICONS.EXE
- %Program Files%\Microsoft Office\Office12\CNFNOT32.EXE
- %Program Files%\Windows NT\Accessories\wordpad.exe
- %Program Files%\Microsoft Office\Office12\MSQRY32.EXE
- %Program Files%\Microsoft Office\Office12\ACCICONS.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ACECNFLT.EXE
- %Program Files%\Microsoft Office\Office12\MSACCESS.EXE
Step 9
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %Program Files%\Microsoft Office\Office12\MSOHTMED.EXE
- %System Root%\Program Files\VMware\VMware Tools\VSock SDK\bin\win64\instutil32.exe
- %System Root%\boots\syswin.exe
- %Program Files%\Microsoft Office\Office12\OUTLOOK.EXE
- %Program Files%\Microsoft Office\Office12\SETLANG.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\LogTransport2.exe
- %Program Files%\Microsoft Office\Office12\GrooveMigrator.exe
- %Program Files%\Common Files\Adobe\ARM\1.0\AdobeARMHelper.exe
- %Program Files%\Microsoft Office\Office12\MSTORE.EXE
- %Program Files%\Common Files\microsoft shared\DW\DW20.EXE
- %Program Files%\Microsoft Office\Office12\DSSM.EXE
- %System Root%\Program Files\VMware\VMware Tools\VMwareXferlogs.exe
- %Program Files%\Common Files\Java\Java Update\jucheck.exe
- %Program Files%\Microsoft Office\Office12\MSTORDB.EXE
- %Program Files%\Microsoft Office\Office12\OIS.EXE
- %Program Files%\Common Files\microsoft shared\MSInfo\OINFOP12.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\ADelRCP.exe
- %Program Files%\Microsoft Office\Office12\POWERPNT.EXE
- %Program Files%\Common Files\Java\Java Update\jusched.exe
- %Program Files%\Microsoft Office\Office12\EXCEL.EXE
- %Program Files%\Microsoft Office\Office12\SCANPST.EXE
- %Program Files%\Microsoft Office\Office12\DRAT.EXE
- %Program Files%\Microsoft Office\Office12\VPREVIEW.EXE
- %Program Files%\Microsoft Office\Office12\PPTVIEW.EXE
- %Program Files%\Google\Update\1.3.34.7\GoogleUpdateCore.exe
- %Program Files%\Common Files\microsoft shared\OFFICE12\ODSERV.EXE
- %Program Files%\Microsoft Office\Office12\SELFCERT.EXE
- %Program Files%\Microsoft Office\Office12\MSPUB.EXE
- %Program Files%\Microsoft Office\Office12\excelcnv.exe
- %Program Files%\Microsoft Office\Office12\1033\ONELEV.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSE7.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOXMLED.EXE
- %Program Files%\Microsoft Office\Office12\ONENOTEM.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\MSOICONS.EXE
- %Program Files%\Microsoft Office\Office12\CNFNOT32.EXE
- %Program Files%\Microsoft Office\Office12\SCANOST.EXE
- %Program Files%\Microsoft Office\Office12\CLVIEW.EXE
- %Program Files%\Common Files\microsoft shared\EQUATION\EQNEDT32.EXE
- %System Root%\Program Files\Mozilla Firefox\maintenanceservice.exe
- %Program Files%\Microsoft Office\Office12\MSQRY32.EXE
- %System Root%\Program Files\Java\jre1.8.0_144\bin\kinit.exe
- %Program Files%\Microsoft Office\Office12\REGFORM.EXE
- %Program Files%\Adobe\Acrobat Reader DC\Reader\Eula.exe
- %Program Files%\Adobe\Acrobat Reader DC\Reader\reader_sl.exe
- %Program Files%\Microsoft Office\Office12\ACCICONS.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\Office Setup Controller\SETUP.EXE
- %Program Files%\Microsoft Office\Office12\WINWORD.EXE
- %Program Files%\Common Files\microsoft shared\OFFICE12\ACECNFLT.EXE
- %Program Files%\Common Files\microsoft shared\DW\DWTRIG20.EXE
- %Program Files%\Microsoft Office\Office12\MSACCESS.EXE
- %System Root%\Program Files\Microsoft Games\Hearts\Hearts.exe
- %System Root%\Program Files\Microsoft Games\SpiderSolitaire\SpiderSolitaire.exe
- %Program Files%\Microsoft Office\Office12\ONENOTE.EXE
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