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Win32.HLLW.Autoruner.50809
Added to the Dr.Web virus database:
2011-05-30
Virus description added:
2012-01-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /A'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'koaput' = '%HOMEPATH%\koaput.exe /H'
Creates the following files on removable media:
<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\fYvo.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\koaput.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\koaputx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
%TEMP%\neyj.exe (downloaded from the Internet)
%HOMEPATH%\koaput.exe
%TEMP%\ijdnq.exe (downloaded from the Internet)
%TEMP%\kemn.exe (downloaded from the Internet)
%TEMP%\hhqhjv.exe (downloaded from the Internet)
%TEMP%\xofop.exe (downloaded from the Internet)
%TEMP%\agmnd.exe (downloaded from the Internet)
%TEMP%\erooq.exe (downloaded from the Internet)
%HOMEPATH%\kvnat.exe
%TEMP%\-1998166001 (downloaded from the Internet)
%HOMEPATH%\Ir26APq41hK903eIwNCk.exe
%HOMEPATH%\jk.exe
%TEMP%\bumdyjo.exe (downloaded from the Internet)
%TEMP%\sdnb.exe (downloaded from the Internet)
%TEMP%\aiqsy.exe (downloaded from the Internet)
%TEMP%\ahcglgo.exe (downloaded from the Internet)
Executes the following:
<SYSTEM32>\tasklist.exe
<SYSTEM32>\svchost.exe
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\nnrfjmqeh[1].php
%TEMP%\neyj.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\scctgxkbb[1].php
%TEMP%\kemn.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\lyyyzdduh[1].php
%TEMP%\ijdnq.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\hhlycptx[1].php
%TEMP%\erooq.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\sbsfwao[1].php
%TEMP%\xofop.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\kxyyp[1].php
%TEMP%\hhqhjv.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\ivjwneei[1].php
%TEMP%\agmnd.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\lmzdd[1].php
%HOMEPATH%\koaput.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\vvvjzar[1].php
%TEMP%\-1998166001
%HOMEPATH%\Ir26APq41hK903eIwNCk.exe
%HOMEPATH%\jk.exe
%HOMEPATH%\kvnat.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\vvvmmddhvl[1].php
%TEMP%\bumdyjo.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\uhhymdqu[1].php
%TEMP%\sdnb.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\wjwwnae[1].php
%TEMP%\aiqsy.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\bosgwxbeff[1].php
%TEMP%\ahcglgo.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\koaput.exe
<Drive name for removable media>:\koaputx.exe
<Drive name for removable media>:\fYvo.ico
%HOMEPATH%\koaput.exe
<Drive name for removable media>:\autorun.inf
Deletes the following files:
<SYSTEM32>\svchost.exe
%HOMEPATH%\Ir26APq41hK903eIwNCk.exe
%HOMEPATH%\jk.exe
Network activity:
Connects to:
TCP:
HTTP GET requests:
aa###lic.com/bdqqu/ivjwneei.php?ad####################################
aa###lic.com/bdqqu/scctgxkbb.php?ad####################################
aa###lic.com/bdqqu/nnrfjmqeh.php?ad####################################
aa###lic.com/bdqqu/kxyyp.php?ad##################################################################
aa###lic.com/bdqqu/sbsfwao.php?ad####################################
aa###lic.com/bdqqu/lmzdd.php?ad####################################
aa###lic.com/bdqqu/hhlycptx.php?ad####################################
aa###lic.com/bdqqu/bosgwxbeff.php?ad####################################
aa###lic.com/bdqqu/vvvmmddhvl.php?ad####################################
aa###lic.com/bdqqu/vvvjzar.php?ad####################################
aa###lic.com/bdqqu/lyyyzdduh.php?ad####################################
aa###lic.com/bdqqu/uhhymdqu.php?ad####################################
aa###lic.com/bdqqu/wjwwnae.php?ad####################################
UDP:
DNS ASK aa###lic.com
'<Private IP address>':1035
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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