Virus: Worm/AInfBot.L Date discovered: 08/09/2009 Type: Worm In the wild: Yes Reported Infections: Low Distribution Potential: Low to medium Damage Potential: Medium Static file: Yes File size: 572.416 Bytes MD5 checksum: 04f3c35e4a1b14da97b04e40e1c9a3ed IVDF version: 7.01.05.219 - Tuesday, September 8, 2009
General Methods of propagation: • Autorun feature • Local network • Messenger Aliases: • Mcafee: W32/Spybot.worm • Sophos: Troj/IrcBot-AGG • Panda: W32/AInfBot.B.worm • Eset: Win32/AutoRun.IRCBot.BY • Bitdefender: Trojan.Generic.2504499 Platforms / OS: • Windows 2000 • Windows XP • Windows 2003 Side effects: • Blocks access to certain websites • Blocks access to security websites • Drops malicious files • Lowers security settings • Registry modification • Makes use of software vulnerability • Third party control Files It copies itself to the following locations: • %SYSDIR% \wbem\wmisvapp.exe • %drive% \DRIVE\CACHE-20194029\drvsys32.exe It overwrites a file. – %SYSDIR% \drivers\etc\hosts It deletes the initially executed copy of itself. The following files are created: – %drive% \DRIVE\CACHE-20194029\Desktop.ini – %drive% \autorun.inf This is a non malicious text file with the following content: • %code that runs malware% Registry The following registry key is added in order to run the process after reboot: – [HKLM\SYSTEM\CurrentControlSet\Services\WMISVAP] • "Description"="Allocates memory for WMI applications. This service cannot be stopped." • "DisplayName"="WMI Service APP" • "ErrorControl"=dword:0x00000000 • "FailureActions"=hex:0A,00,00,00,00,00,00,00,00,00,00,00,01,00,00,00,00,00,00,00,01,00,00,00,B8,0B,00,00 • "ImagePath"=""%SYSDIR% \wbem\wmisvapp.exe"" • "ObjectName"="LocalSystem" • "Start"=dword:0x00000002 • "Type"=dword:0x00000110 The following registry keys are added: – [HKLM\SOFTWARE\Microsoft\Security Center] • "AntiVirusDisableNotify"=dword:0x00000001 • "AntiVirusOverride"=dword:0x00000001 • "FirewallDisableNotify"=dword:0x00000001 • "FirewallOverride"=dword:0x00000001 – [HKLM\SOFTWARE\Policies\Microsoft\MRT] • "DontReportInfectionInformation"=dword:0x00000001 – [HKLM\SOFTWARE\Policies\Microsoft\Windows NT\SystemRestore] • "DisableConfig"=dword:0x00000001 – [HKLM\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate] • "DoNotAllowXPSP2"=dword:0x00000001 The following registry keys are changed: – [HKLM\SOFTWARE\Microsoft\Ole] New value: • "EnableDCOM"="N" – [HKLM\SYSTEM\CurrentControlSet\Control] New value: • "WaitToKillServiceTimeout"="7000" – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions] New value: • "GON"="%executed file% " – [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ Folder\SuperHidden] New value: • "CheckedValue"=dword:0x00000001 Deactivate Windows XP Firewall: Lower security settings from Internet Explorer: Disable Regedit and Task Manager: Internet Explorer's start page: Time format: Various Explorer settings: – [HKLM\SYSTEM\CurrentControlSet\Services\wscsvc] New value: • "Start"=dword:0x00000004 Messenger It is spreading via Messenger. The characteristics are described below: – AIM Messenger – MSN Messenger The URL then refers to a copy of the described malware. If the user downloads and executes this file the infection process will start again. Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below. Exploit: It makes use of the following Exploits: – MS04-007 (ASN.1 Vulnerability) – MS06-040 (Vulnerability in Server Service) IP address generation: It creates random IP addresses while it keeps the first octet from its own address. Afterwards it tries to establish a connection with the created addresses. Remote execution: –It attempts to schedule a remote execution of the malware, on the newly infected machine. Therefore it uses the NetScheduleJobAdd function. IRC To deliver system information and to provide remote control it connects to the following IRC Servers: Server: centre.a-yo**********.info Port: 5213 Server password: 3v1l$ Channel: #sploit Nickname: [00|USA|XP|%number% ] Server: spazm.a-yo**********.info Server: coax.a-yo**********.info Server: euro.b-yo**********.info Server: com0.b-yo**********.info Server: ptr.b-yo**********.info Server: mech.c-yo**********.info Server: det0x.c-yo**********.info Server: sex.c-yo**********.info Hosts The host file is modified as explained: – In this case existing entries are deleted. – Access to the following domains is effectively blocked: • 127.0.0.1 msnfix.changelog.fr; 127.0.0.1 www.incodesolutions.com; 127.0.0.1 virusinfo.prevx.com; 127.0.0.1 download.bleepingcomputer.com; 127.0.0.1 www.dazhizhu.cn; 127.0.0.1 foro.noticias3d.com; 127.0.0.1 www.nabble.com; 127.0.0.1 lurker.clamav.net; 127.0.0.1 lexikon.ikarus.at; 127.0.0.1 research.sunbelt-software.com; 127.0.0.1 www.virusdoctor.jp; 127.0.0.1 www.elitepvpers.de; 127.0.0.1 gynoman.weedns.com; 127.0.0.1 www.superuser.co.kr; 127.0.0.1 ntfaq.co.kr; 127.0.0.1 v.dreamwiz.com; 127.0.0.1 cit.kookmin.ac.kr; 127.0.0.1 forums.whatthetech.com; 127.0.0.1 forum.hijackthis.de; 127.0.0.1 zwnoo1.3322.org; 127.0.0.1 www.huaifai.go.th; 127.0.0.1 www.mostz.com; 127.0.0.1 www.krupunmai.com; 127.0.0.1 www.cddchiangmai.net; 127.0.0.1 forum.malekal.com; 127.0.0.1 tech.pantip.com; 127.0.0.1 sapcupgrades.com; 127.0.0.1 whitehack.eicp.net; 127.0.0.1 www.247fixes.com; 127.0.0.1 forum.sysinternals.com; 127.0.0.1 forum.telecharger.01net.com; 127.0.0.1 sophos.com; 127.0.0.1 foros.softonic.com; 127.0.0.1 avast-home.uptodown.com; 127.0.0.1 koopa.dnip.net; 127.0.0.1 www.f-secure.com; 127.0.0.1 www.chkrootkit.org; 127.0.0.1 diamondcs.com.au; 127.0.0.1 www.rootkit.nl; 127.0.0.1 www.sysinternals.com; 127.0.0.1 z-oleg.com; 127.0.0.1 espanol.dir.groups.yahoo.com; 127.0.0.1 www.castlecrops.com; 127.0.0.1 www.misec.net; 127.0.0.1 safecomputing.umn.edu; 127.0.0.1 www.antirootkit.com; 127.0.0.1 www.greatis.com; 127.0.0.1 ar.answers.yahoo.com; 127.0.0.1 cx10man.weedns.com; 127.0.0.1 www.rootkit.com; 127.0.0.1 www.pctools.com; 127.0.0.1 www.pcsupportadvisor.com; 127.0.0.1 www.resplendence.com; 127.0.0.1 www.personal.psu.edu; 127.0.0.1 foro.ethek.com; 127.0.0.1 fx010413.whyI.org; 127.0.0.1 vil.nail.comm; 127.0.0.1 search.mcafee.com; 127.0.0.1 wwww.mcafee.com; 127.0.0.1 download.nai.com; 127.0.0.1 wwww.experts-exchange.com; 127.0.0.1 www.bakunos.com; 127.0.0.1 www.darkclockers.com; 127.0.0.1 www.Merijn.org; 127.0.0.1 www.spywareinfo.com; 127.0.0.1 www.spybot.info; 127.0.0.1 www.viruslist.com; 127.0.0.1 www.hijackthis.de; 127.0.0.1 www.f-secure.com; 127.0.0.1 forum.kaspersky.com; 127.0.0.1 bfkq.com; 127.0.0.1 majorgeeks.com; 127.0.0.1 www.avp.com; 127.0.0.1 www.virustotal.com; 127.0.0.1 www.sophos.com; 127.0.0.1 linhadefensiva.uol.com.br; 127.0.0.1 cmmings.cn; 127.0.0.1 www.sergiwa.com; 127.0.0.1 c010x1.co.cc; 127.0.0.1 www.avg-antivirus.net; 127.0.0.1 www.kaspersky-labs.com; 127.0.0.1 www.kaspersky.com; 127.0.0.1 www.bleepingcomputer.com; 127.0.0.1 www.free.grisoft.com; 127.0.0.1 alerta-antivirus.inteco.es; 127.0.0.1 securityresponse.symantec.com; 127.0.0.1 www.analysis.seclab.tuwien.ac.at; 127.0.0.1 www.symantec.com; 127.0.0.1 www.kztechs.com; 127.0.0.1 ad-aware-se.uptodown.com; 127.0.0.1 phonewire.dd.blueline.be; 127.0.0.1 liveupdate.symantecliveupdate.com; 127.0.0.1 liveupdate.symantec.com; 127.0.0.1 customer.symantec.com; 127.0.0.1 update.symantec.com; 127.0.0.1 www.box.net; 127.0.0.1 commgr.co.cc; 127.0.0.1 www.mcafee.com; 127.0.0.1 www.free.avg.com; 127.0.0.1 download.mcafee.com; 127.0.0.1 mast.mcafee.com; 127.0.0.1 www.tecno-soft.com; 127.0.0.1 ladooscuro.es; 127.0.0.1 ftp.drweb.com; 127.0.0.1 telephone.dd.blueline.be; 127.0.0.1 guru0.grisoft.cz; 127.0.0.1 guru1.grisoft.cz; 127.0.0.1 guru2.grisoft.cz; 127.0.0.1 guru3.grisoft.cz; 127.0.0.1 download.bleepingcomputer.com; 127.0.0.1 it.answers.yahoo.com; 127.0.0.1 phonelogin.dd.blueline.be; 127.0.0.1 guru4.grisoft.cz; 127.0.0.1 guru5.grisoft.cz; 127.0.0.1 www.virusspy.com; 127.0.0.1 www.download.f-secure.com; 127.0.0.1 www.malwareremoval.com; 127.0.0.1 forums.cnet.com; 127.0.0.1 g.0x20.biz; 127.0.0.1 hjt-data.trend-braintree.com; 127.0.0.1 www.pantip.com; 127.0.0.1 secubox.aldria.com; 127.0.0.1 www.forospyware.com; 127.0.0.1 www.manuelruvalcaba.com; 127.0.0.1 www.zonavirus.com; 127.0.0.1 phonelogin.dnip.net; 127.0.0.1 www.siteadvisor.com; 127.0.0.1 blog.threatfire.com; 127.0.0.1 www.threatexpert.com; 127.0.0.1 blog.hispasec.com; 127.0.0.1 www.configurarequipos.com; 127.0.0.1 sosvirus.changelog.fr; 127.0.0.1 mailcenter.rising.com.cn; 127.0.0.1 mailcenter.rising.com; 127.0.0.1 www.rising.com.cn; 127.0.0.1 www.rising.com; 127.0.0.1 www.babooforum.com.br; 127.0.0.1 www.runscanner.net; 127.0.0.1 ufospace.etowns.net; 127.0.0.1 sosvirus.changelog.fr; 127.0.0.1 upload.changelog.fr; 127.0.0.1 www.raymond.cc; 127.0.0.1 changelog.fr; 127.0.0.1 www.pcentraide.com; 127.0.0.1 atazita.blogspot.com; 127.0.0.1 www.thinkpad.cn; 127.0.0.1 www.final4ever.com; 127.0.0.1 files.filefont.com; 127.0.0.1 www.infos-du-net.com; 127.0.0.1 www.trendsecure.com; 127.0.0.1 forum.hardware.fr; 127.0.0.1 www.utilidades-utiles.com; 127.0.0.1 phonewire.dnip.net; 127.0.0.1 www.spychecker.com; 127.0.0.1 www.geekstogo.com; 127.0.0.1 forums.maddoktor2.com; 127.0.0.1 www.smokey-services.eu; 127.0.0.1 www.clubic.com; 127.0.0.1 www.linhadefensiva.org; 127.0.0.1 theforums.bbsindex.com; 127.0.0.1 download.sysinternals.com; 127.0.0.1 www.pcguide.com; 127.0.0.1 www.thetechguide.com; 127.0.0.1 www.ozzu.com; 127.0.0.1 www.changedetection.com; 127.0.0.1 espanol.groups.yahoo.com; 127.0.0.1 www.sithwarlord.com; 127.0.0.1 community.thaiware.com; 127.0.0.1 www.avpclub.ddns.info; 127.0.0.1 www.offensivecomputing.net; 127.0.0.1 www.grisoft.com; 127.0.0.1 boardreader.com; 127.0.0.1 www.guiadohardware.net; 127.0.0.1 www.msnvirusremoval.com; 127.0.0.1 www.cisrt.org; 127.0.0.1 fixmyim.com; 127.0.0.1 samroeng.hi5.com; 127.0.0.1 foro.elhacker.net; 127.0.0.1 www.daboweb.com; 127.0.0.1 service1.symantec.com; 127.0.0.1 forums.techguy.org; 127.0.0.1 www.incodesolutions.com; 127.0.0.1 hijackthis.download3000.com; 127.0.0.1 www.cybertechhelp.com; 127.0.0.1 www.superdicas.com.br; 127.0.0.1 www.51nb.com; 127.0.0.1 downloads.andymanchesta.com; 127.0.0.1 andymanchesta.com; 127.0.0.1 info.prevx.com; 127.0.0.1 aknow.prevx.com; 127.0.0.1 www.zonavirus.com; 127.0.0.1 securitywonks.net; 127.0.0.1 jsactivity.com; 127.0.0.1 www.lavasoft.com; 127.0.0.1 www.virscan.org; 127.0.0.1 www.eeload.com; 127.0.0.1 down.www.kingsoft.com; 127.0.0.1 www.file.net; 127.0.0.1 onecare.live.com; 127.0.0.1 mvps.org; 127.0.0.1 www.laneros.com; 127.0.0.1 www.housecall.trendmicro.com; 127.0.0.1 www.avast.com; 127.0.0.1 www.free.avg.com; 127.0.0.1 www.onlinescan.avast.com; 127.0.0.1 www.ewido.net; 127.0.0.1 www.trucoswindows.net; 127.0.0.1 www.futurenow.bitdefender.com; 127.0.0.1 www.bitdefender.com; 127.0.0.1 www.f-prot.com; 127.0.0.1 www.trendsecure.com; 127.0.0.1 security.symantec.com; 127.0.0.1 oldtimer.geekstogo.com; 127.0.0.1 www.avira.com; 127.0.0.1 www.eset.com; 127.0.0.1 www.free.avg.com; 127.0.0.1 www.free-av.com; 127.0.0.1 kr.ahnlab.com; 127.0.0.1 www.eset.com; 127.0.0.1 forospyware.com; 127.0.0.1 thejokerx.blogspot.com; 127.0.0.1 www.2-spyware.com; 127.0.0.1 www.antivir.es; 127.0.0.1 www.prevx.com; 127.0.0.1 www.ikarus.net; 127.0.0.1 bbs.s-sos.net; 127.0.0.1 www.housecall.trendmicro.com; 127.0.0.1 www.superdicas.com.br; 127.0.0.1 www.forums.majorgeeks.com; 127.0.0.1 www.castlecops.com; 127.0.0.1 www.virusspy.com; 127.0.0.1 andymanchesta.com; 127.0.0.1 www.kaspersky.es; 127.0.0.1 subs.geekstogo.com; 127.0.0.1 www.trendmicro.com; 127.0.0.1 www.fortinet.com; 127.0.0.1 www.safer-networking.org; 127.0.0.1 www.fortiguardcenter.com; 127.0.0.1 www.dougknox.com; 127.0.0.1 www.vsantivirus.com; 127.0.0.1 www.firewallguide.com; 127.0.0.1 www.auditmypc.com; 127.0.0.1 www.spywaredb.com; 127.0.0.1 www.mxttchina.com; 127.0.0.1 www.ziggamza.net; 127.0.0.1 www.forospyware.es; 127.0.0.1 www.antivirus.comodo.com; 127.0.0.1 www.spywareterminator.com; 127.0.0.1 www.eradicatespyware.net; 127.0.0.1 www.freespywareremoval.info; 127.0.0.1 www.personalfirewall.comodo.com; 127.0.0.1 www.clamav.net; 127.0.0.1 www.antivirus.about.com; 127.0.0.1 www.pandasecurity.com; 127.0.0.1 www.webphand.com; 127.0.0.1 mx.answers.yahoo.com; 127.0.0.1 www.securitywonks.net; 127.0.0.1 www.sandboxie.com; 127.0.0.1 www.clamwin.com; 127.0.0.1 www.cwsandbox.org; 127.0.0.1 www.ca.com; 127.0.0.1 www.arswp.com; 127.0.0.1 es.answers.yahoo.com; 127.0.0.1 www.trucoswindows.es; 127.0.0.1 www.networkworld.com; 127.0.0.1 www.cddchiangmai.net; 127.0.0.1 www.threatexpert.com; 127.0.0.1 www.norman.com; 127.0.0.1 espanol.answers.yahoo.com; 127.0.0.1 www.tallemu.com; 127.0.0.1 virscan.org; 127.0.0.1 www.viruschief.com; 127.0.0.1 scanner.virus.org; 127.0.0.1 www.hijackthis.de; 127.0.0.1 housecall65.trendmicro.com; 127.0.0.1 www.guiadohardware.net; 127.0.0.1 hjt.networktechs.com; 127.0.0.1 www.techsupportforum.com; 127.0.0.1 www.whatthetech.com; 127.0.0.1 www.soccersuck.com; 127.0.0.1 www.pcentraide.com; 127.0.0.1 comunidad.wilkinsonpc.com.co; 127.0.0.1 forum.piriform.com; 127.0.0.1 www.tweaksforgeeks.com; 127.0.0.1 www.daniweb.com; 127.0.0.1 www.geekstogo.com; 127.0.0.1 es.answers.yahoo.com; 127.0.0.1 www.techsupportforum.com; 127.0.0.1 www.pchell.com; 127.0.0.1 www.spyany.com; 127.0.0.1 forums.techguy.org; 127.0.0.1 www.experts-exchange.com; 127.0.0.1 www.wikio.es; 127.0.0.1 www.pandasecurity.com; 127.0.0.1 forums.devshed.com; 127.0.0.1 forum.tweaks.com; 127.0.0.1 www.wilderssecurity.com; 127.0.0.1 www.techspot.com; 127.0.0.1 www.thecomputerpitstop.com; 127.0.0.1 es.wasalive.com; 127.0.0.1 secunia.com; 127.0.0.1 www.thaiadmin.org; 127.0.0.1 es.kioskea.net; 127.0.0.1 www.taringa.net; 127.0.0.1 www.cyberdefender.com; 127.0.0.1 www.feedage.com; 127.0.0.1 new.taringa.net; 127.0.0.1 forum.zazana.com; 127.0.0.1 forum.clubedohardware.com.br; 127.0.0.1 www.computing.net; 127.0.0.1 discussions.virtualdr.com; 127.0.0.1 forum.securitycadets.com; 127.0.0.1 www.techimo.com; 127.0.0.1 13iii.com; 127.0.0.1 www.dicasweb.com.br; 127.0.0.1 www.infosecpodcast.com; 127.0.0.1 www.usbcleaner.cn; 127.0.0.1 www.net-security.org; 127.0.0.1 www.bleedingthreats.net; 127.0.0.1 acs.pandasoftware.com; 127.0.0.1 www.funkytoad.com; 127.0.0.1 www.360safe.cn; 127.0.0.1 www.360safe.com; 127.0.0.1 bbs.360safe.cn; 127.0.0.1 bbs.360safe.com; 127.0.0.1 codehard.wordpress.com; 127.0.0.1 forum.clubedohardware.com.br; 127.0.0.1 support.cmclab.net; 127.0.0.1 www.360.cn; 127.0.0.1 www.360.com; 127.0.0.1 bbs.360safe.cn; 127.0.0.1 bbs.360safe.com; 127.0.0.1 www.forospyware.es; 127.0.0.1 p3dev.taringa.net; 127.0.0.1 www.precisesecurity.com; 127.0.0.1 baike.360.cn; 127.0.0.1 baike.360.com; 127.0.0.1 kaba.360.cn; 127.0.0.1 kaba.360.com; 127.0.0.1 deckard.geekstogo.com; 127.0.0.1 www.taringa.net; 127.0.0.1 forums.comodo.com; 127.0.0.1 www.mvps.org; 127.0.0.1 down.360safe.cn; 127.0.0.1 down.360safe.com; 127.0.0.1 x.360safe.com; 127.0.0.1 dl.360safe.com; 127.0.0.1 ftp.drweb.com; 127.0.0.1 www.hotshare.net; 127.0.0.1 es.wasalive.com; 127.0.0.1 support.cmclab.net; 127.0.0.1 updatem.360safe.com; 127.0.0.1 updatem.360safe.cn; 127.0.0.1 update.360safe.cn; 127.0.0.1 update.360safe.com; 127.0.0.1 www.utilidades-utiles.com; 127.0.0.1 forum.kaspersky.com; 127.0.0.1 bbs.duba.net; 127.0.0.1 www.duba.net; 127.0.0.1 zhidao.baidu.com; 127.0.0.1 hi.baidu.com; 127.0.0.1 www.drweb.com.es; 127.0.0.1 msncleaner.softonic.com; 127.0.0.1 www.javacoolsoftware.com; 127.0.0.1 file.ikaka.com; 127.0.0.1 file.ikaka.cn; 127.0.0.1 bbs.ikaka.com; 127.0.0.1 zhidao.ikaka.com; 127.0.0.1 www.eset-la.com; 127.0.0.1 www.eset-la.com; 127.0.0.1 software-files.download.com; 127.0.0.1 www.ikaka.com; 127.0.0.1 www.ikaka.cn; 127.0.0.1 bbs.cfan.com.cn; 127.0.0.1 www.cfan.com.cn; 127.0.0.1 www.pandasecurity.com; 127.0.0.1 es.mcafee.com; 127.0.0.1 downloads.malwarebytes.org; 127.0.0.1 bbs.kafan.cn; 127.0.0.1 bbs.kafan.com; 127.0.0.1 bbs.kpfans.com; 127.0.0.1 bbs.taisha.org; 127.0.0.1 www.manuelruvalcaba.com; 127.0.0.1 support.f-secure.com; 127.0.0.1 bbs.winzheng.com; 127.0.0.1 alerta-antivirus.inteco.es; 127.0.0.1 foros.zonavirus.com; 127.0.0.1 alerta-antivirus.red.es; 127.0.0.1 www.zonavirus.com; 127.0.0.1 www.malwarebytes.org; 127.0.0.1 www.commentcamarche.net; 127.0.0.1 www.ewido.net; 127.0.0.1 www.infospyware.com; 127.0.0.1 www.bitdefender.es; 127.0.0.1 housecall.trendmicro.com; 127.0.0.1 foros.toxico-pc.com; 127.0.0.1 www.d-a-l.com; 127.0.0.1 www.beartai.com; 127.0.0.1 www.emsisoft.de; 127.0.0.1 www.securitynewsportal.com Rootkit Technology It is a malware-specific technology. The malware hides its presence from system utilities, security applications and in the end, from the user. Hides the following: – Its own process Method used: • Hidden from Windows API File details Runtime packer: In order to aggravate detection and reduce size of the file it is packed with a runtime packer.
Descrizione inserita da Petre Galan su venerdì 12 marzo 2010 Descrizione aggiornata da Petre Galan su lunedì 15 marzo 2010
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