Virus:TR/PSW.Lmir.art
Date discovered:20/02/2006
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:17.721 Bytes
MD5 checksum:67f583cb9d699b581fde383c48af46bc
VDF version:6.33.01.07

 General Method of propagation:
   • No own spreading routine


Alias:
   •  Kaspersky: Trojan-PSW.Win32.Lmir.art


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Disable security applications
   • Lowers security settings
   • Registry modification
   • Steals information

 Files It copies itself to the following location:
   • %SYSDIR%\winser.exe



It deletes the initially executed copy of itself.



The following files are created:

– %WINDIR%\vbarun.dll This is a non malicious text file with the following content:
   • [Shutdown]
     T=
     M=
     D=
     W=

– %SYSDIR%\GroupPolicy\Machine\Scripts\scripts.ini This is a non malicious text file with the following content:
   • [Shutdown]
     0CmdLine=%SYSDIR%\winser.exe
     0Parameters=AVP

 Registry The following registry key is added in order to run the process after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\
   Run]
   • KernelCheck = %SYSDIR%\winser.exe



The following registry key is added:

– [HKLM\SOFTWARE\wSkysoft]

 Process termination List of processes that are terminated:
   • assistse.exe; kregex.exe; trojdie.kxp; kvsrvxp.exe; kvmonxp.kxp;
      frogagent.exe; kvxp.kxp; ccenter.exe; ravmond.exe; ravmon.exe;
      rfwmain.exe; rfwsrv.exe; kpfwsvc.exe; kavpfw.exe; kavstart.exe;
      kmailmon.exe; kwatch.exe; avp.exe; kav.exe; kavsvc.exe; rtvscan.exe;
      ccsetmgr.exe; defwatch.exe; ccevtmgr.exe; ccapp.exe; mcshield.exe;
      mcvsescn.exe; mcdetect.exe; mcmnhdlr.exe; trojanwall.exe;
      fygtcleaner.exe; mantispm.exe; vsmon.exe; isafe.exe; zlclient.exe;
      pcclient.exe; pcctlcom.exe; tmpfw.exe; tmntsrv.exe; tmproxy.exe;
      pccguide.exe; iparmor.exe; xfilter.exe; filmsg.exe; avengine.exe;
      pavsrv51.exe; psimsvc.exe; pavprsrv.exe; tpsrv.exe; pavprsrv.exe;
      apvxdwin.exe; srvload.exe; webproxy.exe


List of services that are disabled:
   • KVSrvXP; KVWSC; RsCCenter; RsRavMon; RfwService; KWatchSvc; KPfwSvc;
      AVP; kavsvc; McTskshd.exe; McDetect.exe; CAISafe; vsmon; Tmntsrv;
      PcCtlCom; TmPfw; tmproxy; pmshellsrv; PAVSRV; PAVFNSVR; PSIMSVC;
      PNMSRV; PavPrSrv; TPSrv

 Backdoor Sends information about:
    • Cached passwords
    • Computer name
    • Users' local activity
    • Information about the Windows operating system

 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with the following runtime packer:
   • FSG

Description inserted by Andrei Gherman on Friday, February 24, 2006
Description updated by Andrei Gherman on Monday, February 27, 2006

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