Virus:TR/Click.Small.HR
Date discovered:23/08/2005
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:20.480 Bytes
MD5 checksum:aab0b0d92b441763d45cff47c9224bcb
VDF version:6.31.1.140

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Symantec: PWSteal.Lemir
   •  Kaspersky: Trojan-Clicker.Win32.Small.hr
   •  Panda: Trj/Agent.AIA
   •  Bitdefender: Trojan.Clicker.Small.HR


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows 2000
   • Windows XP


Side effects:
   • Disable security applications
   • Registry modification

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



It deletes the initially executed copy of itself.



The following file is created:

– %WINDIR%\deleteme.bat Furthermore it gets executed after it was fully created. This batch file is used to delete a file.

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

– HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • "Microsoft"="%SYSDIR%\iexplore.exe"



The values of the following registry keys are removed:

–  HKLM\SoftWare\Microsoft\Windows\CurrentVersion\Run
   • RavMon
   • KAVPersonal50
   • RavTimer
   • KvMonXP
   • iDuba Personal FireWall
   • KAVRun
   • KpopMon
   • Kulansyn
   • KavPFW
   • KvXP
   • ccApp
   • SSC_UserPrompt
   • NAV CfgWiz
   • MCAgentExe
   • McRegWiz
   • MCUpdateExe
   • MSKAGENTEXE
   • MSKDetectorExe
   • VirusScan Online
   • VSOCheckTask
   • McAfeeUpdaterUI
   • Network Associates Error Reporting Service
   • ShStatEXE
   • KavStart
   • Services
   • KWatch9x

–  HKCU\SoftWare\Microsoft\Windows\CurrentVersion\Run
   • iDuba Personal FireWall
   • KavPFW
   • KvXP



The following registry keys are added:

– HKLM\SYSTEM\CurrentControlSet\Services\RsRavMon
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\RsCCenter
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\kavsvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\KVSrvXP
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\wscsvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\SNDSrvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\ccProxy
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\ccEvtMgr
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\ccSetMgr
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\SPBBCSvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\Symantec Core LC
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\navapsvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\NPFMntor
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\MskService
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\FireSvc
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\McShield
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\McTaskManager
   • Start=dword:00000004

– HKLM\SYSTEM\CurrentControlSet\Services\McAfeeFramework
   • Start=dword:00000004

 Process termination List of processes that are terminated:
   • CCAPP.EXE; EGHOST.EXE; explor.exe; FireTray.exe; Iparmor.exe;
      KATMain.EX; KAV32.EXE; KAVPFW.EXE; KAVPLUS.EXE; KAVStart.exe;
      KmailMon.EXE; KPOPMON.EXE; KRegEx.exe; KVCENTER.KXP; KvDetech.exe;
      KVFW.EXE; KVMonXP.KXP; KVOL.exe; kvolself.exe; KVXP.KXP; KWatch9x.exe;
      KWATCHUI.EXE; MAILMON.EXE; MCAGENT.EXE; MCVSESCN.EXE; MSKAGENT.EXE;
      RAV.EXE; RAVMON.EXE; RAVTIMER.EXE; SHSTAT.EXE; SOFTOK.EXE; TBMon.exe;
      TrojanDetector.EXE; TrojDie.kxp; UpdaterUI.exe; windox.exe

Processes with the following characteristics are terminated:
    •  Title: Symantec AntiVirus     Class name: KV2004
    •  Title: RavMon.exe     Class name: RavMonClass
    •  Title: ZoneAlarm     Class name: ZAFrameWnd
    •  Title: %double-byte-characters%     Class name: Tapplication
    •  Title: %double-byte-characters%     Class name: TForm1
    •  Title: %random%     Class name: TfLockDownMain
    •  Title: %random%     Class name: KvXP_ExpertFrame
    •  Title: %random%     Class name: WHXMDI0

List of services that are disabled:
   • ccEvtMgr; ccProxy; ccSetMgr; FireSvc; kavsvc; KPfwSvc; KVSrvXP;
      KWatchSvc; McAfeeFramework; McShield; McTaskManager; MskService;
      navapsvc; NPFMntor; RsCCenter; RsRavMon; SNDSrvc; SPBBCSvc; Symantec
      Core LC; wscsvc

 File details Programming language:
 The malware program was written in Delphi.


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

Description inserted by Irina Boldea on Tuesday, August 23, 2005
Description updated by Irina Boldea on Monday, August 29, 2005

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