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Win32.HLLW.Autoruner.53523
Added to the Dr.Web virus database:
2011-07-07
Virus description added:
2011-07-07
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /v'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\436467984] 'Name' = '"%TEMP%\3.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuiosob' = '%HOMEPATH%\kuiosob.exe /W'
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>:\nLmu.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\kuiosob.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\kuiosobx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
%HOMEPATH%\cod3.exe
%HOMEPATH%\kuiosob.exe
%HOMEPATH%\cod2.exe
%HOMEPATH%\BlegO3Kin9.exe
%HOMEPATH%\cod1.exe
"%TEMP%\xcofpoc.exe" (downloaded from the Internet)
"%TEMP%\cwhm.exe" (downloaded from the Internet)
"%TEMP%\rlquxaam.exe" (downloaded from the Internet)
"%TEMP%\xkcqoui.exe" (downloaded from the Internet)
"%TEMP%\uddkgim.exe" (downloaded from the Internet)
"%TEMP%\750234914" (downloaded from the Internet)
"%TEMP%\vpvpha.exe" (downloaded from the Internet)
"%TEMP%\kbsjaqr.exe" (downloaded from the Internet)
"%TEMP%\myccj.exe" (downloaded from the Internet)
"%TEMP%\pyntens.exe" (downloaded from the Internet)
"%TEMP%\ovuocy.exe" (downloaded from the Internet)
"%TEMP%\qwsqky.exe" (downloaded from the Internet)
Executes the following:
<SYSTEM32>\tasklist.exe
<SYSTEM32>\svchost.exe
Injects code into
the following system processes:
Modifies settings of Windows Internet Explorer:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
Modifies file system :
Creates the following files:
%TEMP%\rlquxaam.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\SL6TKFAX\dhdhuy[1].php
%TEMP%\xcofpoc.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\xtkkbspt[1].php
%TEMP%\pyntens.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\ULU3YH2D\qqqriimq[1].php
%TEMP%\cwhm.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\SL6TKFAX\sjwxkob[1].php
%TEMP%\xkcqoui.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\qduhhl[1].php
%TEMP%\Rlb..bat
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\ULU3YH2D\hdqhyyz[1].php
%TEMP%\750234914
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\erfjjje[1].php
%TEMP%\uddkgim.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\ivzqmqd[1].php
%TEMP%\ovuocy.exe
%TEMP%\2.tmp
%HOMEPATH%\kuiosob.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\arboobnkar[1].php
%WINDIR%\Temp\4.tmp
%HOMEPATH%\cod1.exe
%HOMEPATH%\BlegO3Kin9.exe
%HOMEPATH%\cod3.exe
%HOMEPATH%\cod2.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\dnnrvriqm[1].php
%TEMP%\vpvpha.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\ULU3YH2D\oobbff[1].php
%TEMP%\qwsqky.exe
%TEMP%\myccj.exe
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\69I9OPW5\flcppgggu[1].php
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\0D6B6PI5\nnbrswmqa[1].php
%TEMP%\kbsjaqr.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\kuiosob.exe
<Drive name for removable media>:\kuiosobx.exe
<Drive name for removable media>:\nLmu.ico
%HOMEPATH%\kuiosob.exe
<Drive name for removable media>:\autorun.inf
Deletes the following files:
%HOMEPATH%\BlegO3Kin9.exe
%HOMEPATH%\cod2.exe
<SYSTEM32>\svchost.exe
%WINDIR%\Temp\4.tmp
%HOMEPATH%\cod3.exe
%TEMP%\3.tmp
<DRIVERS>\etc\hosts
Network activity:
Connects to:
'ch###tring.in':80
'aa###ket.com':80
TCP:
HTTP GET requests:
aa###ket.com/ckkuylpycc/erfjjje.php?ad################################
aa###ket.com/ckkuylpycc/xtkkbspt.php?ad################################
aa###ket.com/ckkuylpycc/dhdhuy.php?ad################################
aa###ket.com/ckkuylpycc/hdqhyyz.php?ad##############################################################
aa###ket.com/ckkuylpycc/qduhhl.php?ad################################
aa###ket.com/ckkuylpycc/ivzqmqd.php?ad################################
aa###ket.com/ckkuylpycc/sjwxkob.php?ad################################
aa###ket.com/ckkuylpycc/nnbrswmqa.php?ad################################
aa###ket.com/ckkuylpycc/flcppgggu.php?ad################################
aa###ket.com/ckkuylpycc/arboobnkar.php?ad################################
aa###ket.com/ckkuylpycc/qqqriimq.php?ad################################
aa###ket.com/ckkuylpycc/oobbff.php?ad################################
aa###ket.com/ckkuylpycc/dnnrvriqm.php?ad################################
HTTP POST requests:
ch###tring.in/ads76tds76d76.php?in##############################################################################################################
UDP:
DNS ASK go##le.ae
DNS ASK ch###tring.in
DNS ASK aa###ket.com
DNS ASK ik##.com
DNS ASK si###ell.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
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