Unknown process:: A~NSISu_.exe ??

[Kilee]

After installing CS 1.6, it seemed like i could not connect to a server, and there was a file i do not know in the process tree. Here is my log::

Logfile of HijackThis v1.99.1
Scan saved at 6:16:50 PM, on 7/22/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Sygate\SPF\smc.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\D-Tools\daemon.exe
C:\Program Files\QuickTime\qttask.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Real\RealPlayer\RealPlay.exe
C:\Program Files\MessengerPlus! 3\MsgPlus.exe
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\system32\RUNDLL32.EXE
C:\Program Files\Valve\Steam\Steam.exe
C:\Program Files\Yahoo!\Messenger\ypager.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\AIM\aim.exe
C:\WINDOWS\twain_32\S6U12BX\WATCH.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\mIRC\mirc.exe
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\WINDOWS\system32\taskmgr.exe
C:\DOCUME~1\Owner\LOCALS~1\Temp\A~NSISu_.exe
C:\Program Files\Webteh\BSplayer\bsplayer.exe
C:\HJT\HijackThis.exe

O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O3 - Toolbar: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O3 - Toolbar: AIM Search - {40D41A8B-D79B-43d7-99A7-9EE0F344C385} - C:\Program Files\AIM Toolbar\AIMBar.dll
O4 - HKLM\..\Run: [DAEMON Tools-1033] "C:\Program Files\D-Tools\daemon.exe" -lang 1033
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [IgfxTray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SmcService] C:\PROGRA~1\Sygate\SPF\smc.exe -startgui
O4 - HKLM\..\Run: [Gtwatch] C:\WINDOWS\gtwatch.exe
O4 - HKLM\..\Run: [RealTray] C:\Program Files\Real\RealPlayer\RealPlay.exe SYSTEMBOOTHIDEPLAYER
O4 - HKLM\..\Run: [MessengerPlus3] "C:\Program Files\MessengerPlus! 3\MsgPlus.exe"
O4 - HKLM\..\Run: [UserFaultCheck] %systemroot%\system32\dumprep 0 -u
O4 - HKLM\..\Run: [StartAOL] "C:\Program Files\America Online 9.0\AOL.EXE"
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\WINDOWS\system32\NvMcTray.dll,NvTaskbarInit
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKCU\..\Run: [Steam] C:\Program Files\Valve\Steam\Steam.exe -silent
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [AIM] C:\Program Files\AIM\aim.exe -cnetwait.odl
O4 - Global Startup: Watch.lnk = C:\WINDOWS\twain_32\S6U12BX\WATCH.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &AIM Search - res://C:\Program Files\AIM Toolbar\AIMBar.dll/aimsearch.htm
O8 - Extra context menu item: &AOL Toolbar search - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\j2re1.4.2\bin\npjpi142.dll
O9 - Extra button: Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {4528BBE0-4E08-11D5-AD55-00010333D0AD} - C:\Program Files\Yahoo!\Messenger\yhexbmes0521.dll
O9 - Extra button: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O9 - Extra 'Tools' menuitem: AOL Toolbar - {4982D40A-C53B-4615-B15B-B5B5E98D167C} - C:\Program Files\AOL Toolbar\toolbar.dll
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O14 - IERESET.INF: START_PAGE_URL=http://www.emachines.com
O16 - DPF: {48884C41-EFAC-433D-958A-9FADAC41408E} (EGamesPlugin Class) - https://www.e-games.com.my/com/EGamesPlugin.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://v5.windowsupdate.microsoft.c...ls/en/x86/client/wuweb_site.cab?1104180421828
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2004061001/housecall.trendmicro.com/housecall/xscan53.cab
O16 - DPF: {88D758A3-D33B-45FD-91E3-67749B4057FA} (Sinstaller Class) - http://dm.screensavers.com/dm/installers/si/1/sinstaller.cab
O16 - DPF: {9E17A5F9-2B9C-4C66-A592-199A4BA1FBC8} (AIM UPF Control) - http://pictures05.aim.com/ygp/aol/plugin/upf/AOLUPF.en-US-AIM.9.5.1.8.cab
O16 - DPF: {B38870E4-7ECB-40DA-8C6A-595F0A5519FF} (MsnMessengerSetupDownloadControl Class) - http://messenger.msn.com/download/MsnMessengerSetupDownloader.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://zone.msn.com/binFramework/v10/ZIntro.cab34246.cab
O16 - DPF: {C5E28B9D-0A68-4B50-94E9-E8F6B4697516} (NsvPlayX Control) - http://ntcast.com/tv/nsvplayx_vp6_mp3.cab
O16 - DPF: {DF780F87-FF2B-4DF8-92D0-73DB16A1543A} (PopCapLoader Object) - http://download.games.yahoo.com/games/web_games/popcap/bejeweled2/popcaploader_v6.cab
O16 - DPF: {E5D419D6-A846-4514-9FAD-97E826C84822} (HeartbeatCtl Class) - http://fdl.msn.com/zone/datafiles/heartbeat.cab
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) - http://chat.msn.com/bin/msnchat45.cab
O20 - AppInit_DLLs: MsgPlusLoader.dll
O20 - Winlogon Notify: igfxcui - C:\WINDOWS\SYSTEM32\igfxsrvc.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - c:\Program Files\Intel\NCS\Sync\NetSvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: Sygate Personal Firewall (SmcService) - Sygate Technologies, Inc. - C:\Program Files\Sygate\SPF\smc.exe

the file is A~NSISu_.exe and I suspect it could be a trojan, or some other sort of virus. Please post with haste.

 

[Buzz1927]

Download CCleaner.
Enable viewing of hidden files and protected operating system files. Navigate to Cocuments and Settings\Owner\Local Settings\Temp\A~NSISu_.exe (there will be something between the A and the N, but it will end with NSISu_.exe) and delete it (if it won't let you, try in safemode). Run CCleaner, reboot and see if the problem's gone.

Edit: Not sure why that smiley's there, it's Coc~. WTF, I'll add spaces, C : Documents.

 

[apj101]

a colon followed by a capital D =

 

[Buzz1927]

a colon followed by a capital D =

That explains it, thought we had a few gremlins lurking!
Edit: That and me being too lazy\stupid to put a slash after the colon.

 

[Lorand]

That file is not a malware, it's part of Nullsoft installer system. In fact that's the uninstaller (as you can see it in this code: http://cvs.sourceforge.net/viewcvs.py/nsis/NSIS/Source/exehead/Main.c?rev=1.57 -- search for the string "A~NSISu_.exe").

 

[Buzz1927]

Lorand.
I'm sure you're right that this file may be legit, but why would an uninstaller be in the running processes.
C:\DOCUME~1\Owner\LOCALS~1\Temp\A~NSISu_.exe
AND running from a Temp folder. A lot of malware uses legit file names to try to hide themselves and not be found, which I suspect is the case here.

 

[Lorand]

I agree with that. But why choose that funny and almost unknown name (even hijackthis.de analysis won't recognize it)? If I was a malware programmer, I'd rather choose filenames like "kernel23.exe", "win_main.exe" or something like that and not "A~NSISu_.exe".

 

[Buzz1927]

A lot of malware does use legit file names, e.g. svchost.exe, lsass.exe, or close to it e.g. svhost.exe, scvhost.exe, etc with the intention of it being missed when looking for the problem. This one is strange, it may even be the legit Nullsoft file, but either way, it needs to go.

 

[Lorand]

It definitely need to go.
The following could be too a possible scenario: a lazy malware-creator modified a copy of NSIS (which is open-source) to do some harm on the computer.