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Har du fått W32 conficker.* ? her er hva du må gjøre.


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Er spredning ute å går på en orm som heter W32 Conficker også kjent som Win32/Conficker.A , W32/Downadup.A , Conficker.A , Net-Worm.Win32.Kido.bt .

 

 

Dette er den samme ormen som slo ut over 600 maskiner hos Helse Vest i sist uke.

http://www.nrk.no/nyheter/distrikt/rogaland/1.6409246

 

 

Hva gjør ormen:

Ormen infiserer maskiner i et nettverk ved å bruke sikkerthetshull i svchost og RPC. Den kjører passord brute mot en og en maskin i nettverket for å prøve å komme seg inn på maskinen. Om ormen trenger gjennom systemet, aktiverer den kode for fjernstyring.

Skaden den gjør er, blokkering av diverse sider på nett (som omhandler virus, og fjerning av malware), blokkerer windows firewall, sletter adminpassordet og laster ned infiserte filer.

Det er også registrert treghet på maskin og nettverk.

 

Løsning:

Microsoft lanserte en fix for ormen for 2 dager siden, og en sikkerthetsoppdatering som tetter hullet ble lansert rett før jul.

 

Sikkerhetsoppdatering: Installer denne på alle maskiner i nettverket ditt. Installeres om du har fått virus, eller ikke har fått virus.

http://www.microsoft.com/technet/security/...n/ms08-067.mspx

 

Om du i tillegg er så uheldig at du har blitt infisert må du laste ned en fix som microsoft lanserte nå nettopp.

Malicious Software Removal Tool (KB890830) Kjør denne i full scan.

 

Etter at du har kjørt Microsoft fixen kjører du en fullscan med ditt eget virusprogram bare for å være på den sikre siden.

 

Dette har fungert i de fleste tilfellene hvor jeg har slettet viruset.

 

Edit: Det er blitt lagt liste over hosts hvor filangrepene kommer fra. Anbefaler å legge til denne i blocked listen i firewall:

 

 

 

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wmoxwmye.cc

wmuvh.ws

wmuxb.net

wmvmnorzje.net

wnjykygn.cc

wnymryqmpbo.net

woitmxnq.biz

wozir.com

wpllnlvdqs.cc

wqloszgf.org

wqmqnksjq.com

wrbtcxowf.cc

wreborcs.com

wrvfzuaruhj.info

wshazbuck.cn

wslgrcxnz.com

wtzphmvw.biz

wuzth.ws

wvdwnan.com

wvmsa.info

wvngdvophf.net

wvnsgymgjvc.ws

wwcmnhy.info

wxsjsrkb.org

wzdejwwsbae.cn

wzjlsnxyaoz.biz

wztntrbrcux.ws

xbekm.com

xcandxkdzm.org

xcfjwop.net

xcnftmt.cn

xcrgsrmndh.biz

xcvka.net

xdscuercak.info

xeqjfantci.cc

xgxgg.biz

xhcvjgpm.ws

xhuwvozd.info

xiaxngbezj.net

xjhluwcx.org

xjtujsa.ws

xknjwq.cc

xladew.net

xmskw.cn

xnkckd.biz

xomovhtihzx.ws

xprvheltmoz.org

xqnafkupp.com

xrstki.biz

xsawt.info

xtdlrpl.com

xujhjyjz.org

xulhnn.biz

xunwykkv.biz

xwfdd.cn

xwfshhnko.com

xxaciwuyrda.cc

xxfknhwd.ws

xylekmr.cc

xzini.com

yayugzlypo.cc

ybgcjpnzts.info

ybnnyqhvan.biz

ybxitaql.biz

yclorj.info

yctndvxot.ws

ydswzuhtkm.biz

yeawsbub.cc

yeeollvintx.org

yeiszdkz.cn

yejibstbb.cn

yettb.cn

ygaabxla.cn

ygjdqoupy.org

yglmh.biz

ygnibsdlw.net

yhbsqbpsh.cn

yhdvyrar.net

yjrwzwck.ws

ykxcftlsv.org

ykxqjwhigme.info

ylqitlpce.org

ymbky.org

ynmovaifs.biz

ypfkzzoc.cn

yplhakjtm.org

ypqvvuwl.cc

yqnfguqz.cn

yrpdte.org

yruyarfzpf.cc

yspxvwjn.com

ytrzg.com

yufqvjdir.ws

yuvyxuxe.com

yvdctqgo.info

yvevafm.cn

ywauktyxjns.com

ywzzsgymys.biz

yxxrrq.ws

yyfnciry.biz

yykad.net

yzdmh.net

zargs.biz

zbiqa.com

zcisbmcisjt.cn

zcqkrnq.cc

zebjmyuk.info

zejtdkec.cn

ziryfppqt.com

zjhmctjkl.net

zkdqstca.com

zktqlskws.ws

zlregjxu.net

zmkkltnzivo.com

zmpde.net

znchfddd.org

zofhka.cc

zqnsstag.org

zqwxamo.cc

zsxwhktx.net

zullc.com

zveeksjykj.cc

zvklpqhgvc.ws

zwedpmoa.info

zwlbeyhyu.ws

zwxnfrlwkbg.info

zyecoevuagb.com

zyypvv.biz

zzjuk.net

 

 

 

Eksterne lenke angående ormen:

 

http://www.microsoft.com/security/portal/E...n32%2fConficker

Endret av Hille
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  • 3 uker senere...
Videoannonse
Annonse

1r9b1k7:

Kunne du ha postet Combofix-loggen (om du kjørte denne)?

Hvis du ikke har kjørt Malwarebytes, kunne det ha vært interessant og sett om det dukker opp noe der.

 

Det er bra om verktøyet fra Microsoft faktisk gjør det det bør gjøre ang. filer og register knyttet til denne infeksjonen :)

Endret av norbat
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Her er loggen fra malwarebytes:

 

Malwarebytes' Anti-Malware 1.33

Databaseversjon: 1713

Windows 5.1.2600 Service Pack 3

 

01.02.2009 21:38:00

mbam-log-2009-02-01 (21-37-50).txt

 

Skanntype: Rask Skann

Objekter skannet: 64376

Tid tilbakelagt: 4 minute(s), 4 second(s)

 

Minneprosesser infisert: 0

Minnemoduler infisert: 0

Registernøkler infisert: 0

Registerverdier infisert: 0

Registerfiler infisert: 1

Mapper infisert: 0

Filer infisert: 0

 

Minneprosesser infisert:

(Ingen mistenkelige filer funnet)

 

Minnemoduler infisert:

(Ingen mistenkelige filer funnet)

 

Registernøkler infisert:

(Ingen mistenkelige filer funnet)

 

Registerverdier infisert:

(Ingen mistenkelige filer funnet)

 

Registerfiler infisert:

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools (Hijack.Regedit) -> Bad: (1) Good: (0) -> No action taken.

 

Mapper infisert:

(Ingen mistenkelige filer funnet)

 

Filer infisert:

(Ingen mistenkelige filer funnet)

 

 

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  • 1 måned senere...

Har Vista Business 32-bit og mest sannsynlig Conficker. Jeg kommer inn på microssoft.com, men får ikke lastet ned MRST. Jeg har også en autorun.inf som ligner på den Conficker lager. Og rare filer rundt om kring som Symantec sin Conficker remover ikke kunne åpne.

 

Lastet ned MRST fra en annen PC, men får ikke startet den. Symantec og BitDefender sine Conficker removal tools finner ingenting. NOD32 finner heller ikke.

 

Alt er gjort i Safe Mode.

 

HJT

 

 

Logfile of Trend Micro HijackThis v2.0.2

Scan saved at 10:19:52, on 01.04.2009

Platform: Windows Vista SP1 (WinNT 6.00.1905)

MSIE: Internet Explorer v7.00 (7.00.6001.18000)

Boot mode: Safe mode

 

Running processes:

C:\Windows\Explorer.EXE

H:\HiJackThis.exe

 

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = about:blank

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896

R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =

R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =

R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =

O1 - Hosts: ::1 localhost

O2 - BHO: Java Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre6\bin\ssv.dll

O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\5.1.1309.3572\swg.dll

O2 - BHO: Java Plug-In 2 SSV Helper - {DBC80044-A445-435b-BC74-9C25C1C588A9} - C:\Program Files\Java\jre6\bin\jp2ssv.dll

O2 - BHO: FlashFXP Helper for Internet Explorer - {E5A1691B-D188-4419-AD02-90002030B8EE} - C:\PROGRA~1\FlashFXP\IEFlash.dll

O3 - Toolbar: DAEMON Tools Toolbar - {32099AAC-C132-4136-9E9A-4E364A424E17} - C:\Program Files\DAEMON Tools Toolbar\DTToolbar.dll

O4 - HKLM\..\Run: [Windows Defender] %ProgramFiles%\Windows Defender\MSASCui.exe -hide

O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe

O4 - HKLM\..\Run: [PSQLLauncher] "C:\Program Files\Protector Suite QL\launcher.exe" /startup

O4 - HKLM\..\Run: [NvSvc] RUNDLL32.EXE C:\Windows\system32\nvsvc.dll,nvsvcStart

O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\Windows\system32\NvCpl.dll,NvStartup

O4 - HKLM\..\Run: [NvMediaCenter] RUNDLL32.EXE C:\Windows\system32\NvMcTray.dll,NvTaskbarInit

O4 - HKLM\..\Run: [egui] "C:\Program Files\ESET\ESET NOD32 Antivirus\egui.exe" /hide /waitservice

O4 - HKLM\..\Run: [igfxTray] C:\Windows\system32\igfxtray.exe

O4 - HKLM\..\Run: [Windows Mobile Device Center] %windir%\WindowsMobile\wmdc.exe

O4 - HKLM\..\Run: [sony Ericsson PC Suite] "C:\Program Files\Sony Ericsson\Mobile2\Application Launcher\Application Launcher.exe" /startoptions

O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\QTTask.exe" -atboottime

O4 - HKLM\..\Run: [intelliPoint] "C:\Program Files\Microsoft IntelliPoint\ipoint.exe"

O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\Windows Live\Messenger\MsnMsgr.Exe" /background

O4 - HKCU\..\Run: [DAEMON Tools Lite] "C:\Program Files\DAEMON Tools Lite\daemon.exe" -autorun

O4 - HKCU\..\Run: [C:\Program Files\NetMeter\NetMeter.exe] C:\Program Files\NetMeter\NetMeter.exe

O4 - HKCU\..\Run: [WhatPulse] C:\Program Files\WhatPulse\WhatPulse.exe

O4 - HKCU\..\Run: [nodenable] C:\Program Files\eset\nodenable.exe

O4 - HKUS\S-1-5-19\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-19\..\Run: [WindowsWelcomeCenter] rundll32.exe oobefldr.dll,ShowWelcomeCenter (User 'LOCAL SERVICE')

O4 - HKUS\S-1-5-20\..\Run: [sidebar] %ProgramFiles%\Windows Sidebar\Sidebar.exe /detectMem (User 'NETWORK SERVICE')

O4 - Startup: AWC (lower priority).lnk = C:\Windows\System32\cmd.exe

O4 - Startup: TK8 EasyNote.lnk = C:\Users\Stale\AppData\Roaming\TK8 Software\TK8 EasyNote\EasyNote.exe

O4 - Global Startup: Bluetooth.lnk = ?

O4 - Global Startup: Google Calendar Sync.lnk = C:\Program Files\Google\Google Calendar Sync\GoogleCalendarSync.exe

O8 - Extra context menu item: E&ksporter til Microsoft Excel - res://C:\PROGRA~1\MICROS~3\OFFICE11\EXCEL.EXE/3000

O8 - Extra context menu item: Send image to &Bluetooth Device... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie_ctx.htm

O8 - Extra context menu item: Send page to &Bluetooth Device... - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm

O9 - Extra button: @C:\Windows\WindowsMobile\INetRepl.dll,-222 - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll

O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll

O9 - Extra 'Tools' menuitem: @C:\Windows\WindowsMobile\INetRepl.dll,-223 - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Windows\WindowsMobile\INetRepl.dll

O9 - Extra button: Oppslag - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL

O9 - Extra button: @btrez.dll,-4015 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm

O9 - Extra 'Tools' menuitem: @btrez.dll,-12650 - {CCA281CA-C863-46ef-9331-5C8D4460577F} - C:\Program Files\WIDCOMM\Bluetooth Software\btsendto_ie.htm

O13 - Gopher Prefix:

O23 - Service: Adobe LM Service - Adobe Systems - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe

O23 - Service: Eset HTTP Server (EhttpSrv) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\EHttpSrv.exe

O23 - Service: Eset Service (ekrn) - ESET - C:\Program Files\ESET\ESET NOD32 Antivirus\ekrn.exe

O23 - Service: Intel® PROSet/Wireless Event Log (EvtEng) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe

O23 - Service: Franson GpsGate 2.0 - Unknown owner - C:\Program Files\Franson\GpsGate 2.0\GpsGateService.exe

O23 - Service: Google Software Updater (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe

O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe

O23 - Service: PnkBstrA - Unknown owner - C:\Windows\system32\PnkBstrA.exe

O23 - Service: Intel® PROSet/Wireless Registry Service (RegSrvc) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe

O23 - Service: SigmaTel Audio Service (STacSV) - SigmaTel, Inc. - C:\Windows\system32\stacsv.exe

O23 - Service: StarWind AE Service (StarWindServiceAE) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindServiceAE.exe

O23 - Service: Steam Client Service - Valve Corporation - C:\Program Files\Common Files\Steam\SteamService.exe

O23 - Service: VAIO Event Service - Sony Corporation - C:\Program Files\Sony\VAIO Event Service\VESMgr.exe

O23 - Service: VAIO Content Metadata Intelligent Analyzing Manager (VcmIAlzMgr) - Sony Corporation - C:\Program Files\Sony\VCM Intelligent Analyzing Manager\VcmIAlzMgr.exe

O23 - Service: wampapache - Apache Software Foundation - c:\wamp\bin\apache\apache2.2.8\bin\httpd.exe

O23 - Service: wampmysqld - Unknown owner - c:\wamp\bin\mysql\mysql5.0.51b\bin\mysqld-nt.exe

O23 - Service: XAudioService - Conexant Systems, Inc. - C:\Windows\system32\DRIVERS\xaudio.exe

 

--

End of file - 7259 bytes

 

 

 

Endret av Ståle
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Fant http://www.skullsecurity.org/blog/?p=209

 

 

root@grete:~/nmap# ./nmap --script=smb-check-vulns --script-args=unsafe=1 -p445 -d 192.168.2.199

Warning: File ./nselib/ exists, but Nmap is using /usr/local/share/nmap/nselib/ for security and consistency reasons. set NMAPDIR=. to give priority to files in your local directory (may affect the other data files too).

 

Starting Nmap 4.85BETA6 ( http://nmap.org ) at 2009-04-01 16:36 CEST

--------------- Timing report ---------------

hostgroups: min 1, max 100000

rtt-timeouts: init 1000, min 100, max 10000

max-scan-delay: TCP 1000, UDP 1000

parallelism: min 0, max 0

max-retries: 10, host-timeout: 0

min-rate: 0, max-rate: 0

---------------------------------------------

Initiating ARP Ping Scan at 16:36

Scanning 192.168.2.199 [1 port]

Packet capture filter (device eth0): arp and ether dst host 00:30:05:65:F5:9D

Completed ARP Ping Scan at 16:36, 0.02s elapsed (1 total hosts)

Overall sending rates: 60.10 packets / s, 2524.34 bytes / s.

mass_rdns: Using DNS server 192.168.2.3

mass_rdns: Using DNS server 192.168.2.5

Initiating SYN Stealth Scan at 16:36

Scanning vaio-fedora (192.168.2.199) [1 port]

Packet capture filter (device eth0): dst host 192.168.2.3 and (icmp or ((tcp or udp) and (src host 192.168.2.199)))

Discovered open port 445/tcp on 192.168.2.199

Completed SYN Stealth Scan at 16:36, 0.01s elapsed (1 total ports)

Overall sending rates: 79.87 packets / s, 3514.10 bytes / s.

NSE: Initiating script scanning.

NSE: Script scanning vaio-fedora (192.168.2.199).

NSE: Initialized 1 rules

NSE: Matching rules.

NSE: Running scripts.

NSE: Runlevel: 2.000000

Initiating NSE at 16:36

Running 1 script threads:

NSE (0.302s): Starting smb-check-vulns against 192.168.2.199.

NSE: SMB: Extended login as \guest succeeded

NSE: SMB: Extended login as \guest succeeded

NSE: SMB: Extended login as \guest succeeded

NSE (0.463s): Finished smb-check-vulns against 192.168.2.199.

Completed NSE at 16:36, 0.16s elapsed

NSE: Script scanning completed.

Host vaio-fedora (192.168.2.199) is up, received arp-response (0.0013s latency).

Scanned at 2009-04-01 16:36:09 CEST for 0s

Interesting ports on vaio-fedora (192.168.2.199):

PORT STATE SERVICE REASON

445/tcp open microsoft-ds syn-ack

MAC Address: 00:1F:3B:0B:F3:A1 (Intel Corporate)

 

Host script results:

| smb-check-vulns:

| MS08-067: FIXED

| Conficker: Likely CLEAN

|_ regsvc DoS: ERROR: NT_STATUS_OBJECT_NAME_NOT_FOUND

Final times for host: srtt: 1341 rttvar: 3920 to: 100000

 

 

Read from /usr/local/share/nmap: nmap-mac-prefixes nmap-services.

Nmap done: 1 IP address (1 host up) scanned in 0.71 seconds

Raw packets sent: 2 (86B) | Rcvd: 3 (126B)

 

 

 

Men kommer ikke inn på eset.com, laste ned oppdateringer til windows/defender eller WLM.

 

når jeg pinger eset.com, oversetter noe det til 127.0.0.1.

 

 

C:\Users\Stale\Desktop>nslookup eset.com

Server: UnKnown

Address: 192.168.2.5

 

Non-authoritative answer:

Name: eset.com

Address: 72.3.254.86

 

 

 

 

LØST: ComboFix fikset det. Men det ser ikke ut som det var Conficker. Jeg vet ikke hva det var, men vil gjerne finne det ut:

https://www.diskusjon.no/index.php?showtopic=1093708&hl=

Endret av Ståle
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  • 3 uker senere...

Muttern fikk mail fra Nextgentel med beskjed om at hun var infected med Conficker viruset her om dagen. Jeg har scannet pc'en med både Microsoft malicious software removal tool, S.T.I.N.G.E.R har kjørt Combofix uten at de har funnet noe :-/

 

Noen som har peiling på hvordan jeg kan finne ut med sikkerhet om denne maskinen har conficker`?

 

Edit: la til combofixloggen hvis det kan være til hjelp :)

combofix_log.txt

Endret av turb0man
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