Backdoor:W32/Hupigon.EMV | F-Secure Archived: 2026-04-05 12:37:19 UTC Classification Aliases: Backdoor.Win32.Hupigon.emv Summary A backdoor is a Remote Administration Tools (RAT) that expose infected machines to external control via the Internet by remote attackers. Removal Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it. A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also: Check for the latest database updates First, check if your F-Secure security program is using the latest updates, then try scanning the file again. Submit a sample After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis. Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it. Exclude a file from further scanning If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product. Note: You need administrative rights to change the settings. Technical Details https://www.f-secure.com/v-descs/backdoor_w32_hupigon_emv.shtml Page 1 of 5 This backdoor is detected as a member of the Hupigon family. the Backdoor:W32/Hupigon description provides additional details.Copies itself to: %Windows%\dllhost.exe %Windows%\setuprs1.PIF Replicates these original Windows applications with an additional "EXE" extension: %Windows%\system32\cmd.exe to %Windows%\system32\cmd.exe.exe %Windows%\regedit.exe to %Windows%\regedit.exe.exe Hupigon.EMV attempts to disable/redirect Windows applications using the following registry entries: HKLM\Software\Microsoft\Windows NT\ CurrentVersion\Image File Execution Options\cmd.exe Debugger = setuprs1.PIF HKLM\Software\Microsoft\Windows NT\ CurrentVersion\Image File Execution Options\regedit.exe Debugger = setuprs1.PIF HKLM\Software\Microsoft\Windows NT\ CurrentVersion\Image File Execution Options\regedt32.exe Debugger = setuprs1.PIF HKLM\Software\Microsoft\Windows NT\ CurrentVersion\Image File Execution Options\msconfig.exe Debugger = 7303.PIF Registers itself as Windows COM+ System Application service using these registry entries: HKLM\System\CurrentControlSet\Services\COMSystemApp Type = 00000110 HKLM\System\CurrentControlSet\Services\COMSystemApp ErrorControl = 00000000 HKLM\System\CurrentControlSet\Services\COMSystemApp ImagePath = C:\WINDOWS\dllhost.exe - netsvcs HKLM\System\CurrentControlSet\Services\COMSystemApp DisplayName = COM+ System Applications Attempts to locate and terminate the following process: 360tray.exe autoruns.exe avp.exe avpcc.exe cpf.exe ewido.exe FireTray.exe FireWall.exe FYFireWall.exe jpf.exe kav.exe KAVPF.exe KavPFW.EXE kpf4gui.exe https://www.f-secure.com/v-descs/backdoor_w32_hupigon_emv.shtml Page 2 of 5 KPFW32.EXE KVCenter.kxp KvMonXP.kxp KVXP.kxp McAfeeFire.exe mmc.exe outpost.exe PFW.exe procexp.exe Ras.exe RfwMain.EXE RRfwMain.EXE runiep.exe ssgui.exe SysSafe.exe TrojDie.kxp WoptiProcess.exe Attempts to close windows containing these strings: ZoneAlarm ZoneAlarm Pro Attempts to connect to 218.16.138.64 on TCP port 81. Propagation It attempts to propagate by creating "\runauto..\autorun.pif" and "\autorun.inf" on all available drives, including removable drives.The autorun.inf file is detected as Worm.Win32.AutoRun.dms.The autorun.inf appears as: [AutoRun] open=RUNAUT~1\autorun.pif shell\1=´ò¿ª(&O) shell\1\Command=RUNAUT~1\autorun.pif shell\2\=ä¯ÀÀ(&B) shell\2\Command=RUNAUT~1\autorun.pif shellexecute=RUNAUT~1\autorun.pif To make sure it will only run once, the mutex "Red_Server_2007" is created. File System Changes Create these directories: %drive%\runauto..\ Protect your devices from malware with F‑Secure Total Protecting your devices from malicious software is essential for maintaining online security. 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Free customer support Cancel anytime The trial does not obligate you to buy the product Try Total 30 days for freeAfter 30 days your subscription will renew automatically for one year at €99.99. More Support Contact Support Chat with with or call an agent. Source: https://www.f-secure.com/v-descs/backdoor_w32_hupigon_emv.shtml https://www.f-secure.com/v-descs/backdoor_w32_hupigon_emv.shtml Page 5 of 5