Win32.HLLW.Autohit.15315
Added to the Dr.Web virus database:
2014-11-21
Virus description added:
2014-11-21
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe csrcs.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'csrcs' = '<SYSTEM32>\csrcs.exe'
Malicious functions:
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\wbem\wmiadap.exe' /R /T
- '<SYSTEM32>\ping.exe' -n 5 -w 250 127.0.0.1
- '<SYSTEM32>\cmd.exe' /c %TEMP%\suicide.bat
Modifies file system :
Creates the following files:
- %TEMP%\lclzalv
- %TEMP%\aut2.tmp
- %TEMP%\~ip.tmp
- <SYSTEM32>\autorun.inf
- %TEMP%\arwjshw
- %TEMP%\aut1.tmp
- %TEMP%\suicide.bat
- <SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\autorun.inf
- <SYSTEM32>\csrcs.exe
Deletes the following files:
- %TEMP%\~ip.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
- <SYSTEM32>\PerfStringBackup.TMP
- <SYSTEM32>\wbem\Performance\WmiApRpl.ini
- %TEMP%\arwjshw
- %TEMP%\aut1.tmp
- %TEMP%\aut2.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
- %TEMP%\lclzalv
Deletes itself.
Network activity:
Connects to:
- 'fl#.##m6nom6.com':9348
- 'ki#.##akapatama.com':7872
- 'ch####p.dyndns.org':80
- 'pi####pam.orz.hm':6854
- 'www.wh###smyip.com':80
TCP:
HTTP GET requests:
- www.wh###smyip.com/?rn#########################################
- ch####p.dyndns.org/?rn#########################################
- www.wh###smyip.com/automation/n09230945.asp
UDP:
- DNS ASK fl#.##m6nom6.com
- DNS ASK ki#.##akapatama.com
- DNS ASK ch####p.dyndns.org
- DNS ASK pi####pam.orz.hm
- DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
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