Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Command Processor] 'AutoRun' = '"%APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe"'
- [<HKCU>\Control Panel\Desktop] 'SCRNSAVE.EXE' = '"%APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'rsmsink' = '"%APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'rsmsink' = '"%APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe"'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\rsmsink.lnk
Malicious functions:
Creates and executes the following:
- '%APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe' "<Full path to file>"
Executes the following:
- '<SYSTEM32>\svchost.exe' -k netsvcs
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\cmd.exe
- <SYSTEM32>\ctfmon.exe
- %WINDIR%\Explorer.EXE
a large number of user processes.
Modifies file system:
Creates the following files:
- %APPDATA%\Microsoft\Windows\dllcache\himem.sys
- %APPDATA%\Microsoft\Windows\dllcache\ncpa.cpl
- %APPDATA%\Microsoft\Windows\dllcache\odbc16gt.dll
- %APPDATA%\Microsoft\Windows\dllcache\racpldlg.dll
- %APPDATA%\Microsoft\Windows\dllcache\help.exe
- %APPDATA%\Microsoft\Windows\dllcache\acelpdec.ax
- %APPDATA%\Microsoft\Windows\dllcache\joy.cpl
- %APPDATA%\Microsoft\Windows\dllcache\samlib.dll
- %APPDATA%\Microsoft\Windows\dllcache\shgina.dll
- %APPDATA%\Microsoft\Windows\dllcache\amstream.dll
- %APPDATA%\Microsoft\Windows\dllcache\dataclen.dll
- %APPDATA%\Microsoft\Windows\dllcache\xmlprovi.dll
- %APPDATA%\Microsoft\Windows\dllcache\certcli.dll
- %APPDATA%\Microsoft\Windows\dllcache\watchdog.sys
- %APPDATA%\Microsoft\Windows\dllcache\wiavideo.dll
- %APPDATA%\Microsoft\Windows\dllcache\p2pgasvc.dll
- %APPDATA%\Microsoft\Windows\dllcache\mqprfsym.h
- %APPDATA%\Microsoft\Windows\dllcache\jet500.dll
- %APPDATA%\Microsoft\Windows\dllcache\vdmredir.dll
- %APPDATA%\Microsoft\Windows\dllcache\acledit.dll
- %APPDATA%\Microsoft\Windows\dllcache\l3codecx.ax
- %APPDATA%\Microsoft\Windows\dllcache\access.cpl
- %APPDATA%\Microsoft\Windows\dllcache\gdiplus.dll
- %APPDATA%\Microsoft\Windows\dllcache\rdpcfgex.dll
- %APPDATA%\Microsoft\Windows\dllcache\p2p.dll
- %APPDATA%\Microsoft\Windows\dllcache\noise.deu
- %APPDATA%\Microsoft\Windows\dllcache\rasctrnm.h
- %APPDATA%\Microsoft\Windows\dllcache\advpack.dll
- %APPDATA%\Microsoft\Windows\dllcache\g711codc.ax
- %APPDATA%\Microsoft\Windows\dllcache\d3dxof.dll
- %APPDATA%\Microsoft\Windows\dllcache\fixmapi.exe
- %APPDATA%\Microsoft\Windows\dllcache\ntio.sys
- %APPDATA%\Microsoft\Windows\dllcache\blackbox.dll
- %APPDATA%\Microsoft\Windows\dllcache\devmgmt.msc
- %APPDATA%\Microsoft\Windows\dllcache\webfldrs.msi
- %APPDATA%\Microsoft\Windows\dllcache\powrprof.dll
- %APPDATA%\Microsoft\Windows\dllcache\perfmon.exe
- %APPDATA%\Microsoft\Windows\dllcache\faultrep.dll
- %APPDATA%\Microsoft\Windows\dllcache\safrcdlg.dll
- %APPDATA%\Microsoft\Windows\dllcache\cabinet.dll
- %APPDATA%\Microsoft\Windows\dllcache\wbcache.deu
- %APPDATA%\Microsoft\Windows\dllcache\regsvc.dll
- %APPDATA%\Microsoft\Windows\dllcache\usrlogon.cmd
- %APPDATA%\Microsoft\Windows\dllcache\kbdukx.dll
- %APPDATA%\Microsoft\Windows\dllcache\qcap.dll
- %APPDATA%\Microsoft\Windows\dllcache\vjoy.dll
- %APPDATA%\Microsoft\Windows\dllcache\sclgntfy.dll
- %APPDATA%\Microsoft\Windows\dllcache\wiaservc.dll
- %APPDATA%\Microsoft\Windows\dllcache\bios1.rom
- %APPDATA%\Microsoft\Windows\dllcache\edit.hlp
- %APPDATA%\Microsoft\Windows\dllcache\eventquery.vbs
- %APPDATA%\Microsoft\Windows\dllcache\cabview.dll
- %APPDATA%\Microsoft\Windows\dllcache\PresentationHostProxy.dll
- %APPDATA%\Microsoft\Windows\dllcache\sigverif.exe
- %APPDATA%\Microsoft\Windows\dllcache\taskkill.exe
- %APPDATA%\Microsoft\Windows\dllcache\pagefileconfig.vbs
- %APPDATA%\Microsoft\Windows\dllcache\langwrbk.dll
- %APPDATA%\Microsoft\Windows\dllcache\kbduk.dll
- %APPDATA%\Microsoft\Windows\dllcache\kbdest.dll
- %APPDATA%\Microsoft\Windows\dllcache\pid.dll
- %APPDATA%\Microsoft\Windows\dllcache\gpkcsp.dll
- %APPDATA%\Microsoft\Windows\dllcache\kbddv.dll
- %APPDATA%\Microsoft\Windows\dllcache\aaaamon.dll
- %APPDATA%\Microsoft\Windows\dllcache\h323.tsp
- %APPDATA%\Microsoft\Windows\dllcache\fwcfg.dll
- %APPDATA%\Microsoft\Windows\dllcache\taskmgr.exe
- %APPDATA%\Microsoft\Windows\dllcache\mfc100deu.dll
- %APPDATA%\Microsoft\Windows\dllcache\l3codeca.acm
- %APPDATA%\Microsoft\Windows\dllcache\mag_hook.dll
- %APPDATA%\Microsoft\Windows\dllcache\wlnotify.dll
- %APPDATA%\Microsoft\Windows\dllcache\sapi.cpl.manifest
- %APPDATA%\Microsoft\Windows\dllcache\graftabl.com
- %APPDATA%\Microsoft\Windows\dllcache\rasautou.exe
- %APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe
- %TEMP%\tmp1.tmp
- %APPDATA%\Microsoft\Windows\dllcache\RCX2.tmp
- %APPDATA%\Microsoft\SystemCertificates\My\Certificates\4C9419B0CFF2766C53C51D6209910038A5DD924A
- C:\System Volume Information\EFS0.LOG
- %APPDATA%\Microsoft\Protect\CREDHIST
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-2052111302-484763869-725345543-1003\c7ededb1cbb3634c4473dce7463ff682_23ef5514-3059-436f-a4a7-4cefaab20eb1
- %APPDATA%\Microsoft\Windows\dllcache\v7vga.rom
- %APPDATA%\Microsoft\Windows\dllcache\lanman.drv
- %APPDATA%\Microsoft\Windows\dllcache\oembios.bin
- %APPDATA%\Microsoft\Windows\dllcache\kanji_1.uce
- %APPDATA%\Microsoft\Windows\dllcache\RCX3.tmp
- %TEMP%\tmp4.tmp
- C:\Documents and Settings\Default User\Start Menu\Programs\Startup\rsmsink.lnk
- %APPDATA%\Microsoft\Windows\dllcache\bopomofo.uce
- %APPDATA%\Microsoft\Windows\dllcache\find.exe
- %APPDATA%\Microsoft\Windows\dllcache\rasman.dll
- %APPDATA%\Microsoft\Windows\dllcache\adptif.dll
- %APPDATA%\Microsoft\Windows\dllcache\noise.chs
- %APPDATA%\Microsoft\Windows\dllcache\lmrt.dll
- %APPDATA%\Microsoft\Windows\dllcache\kbdes.dll
- %APPDATA%\Microsoft\Windows\dllcache\loadperf.dll
- %APPDATA%\Microsoft\Windows\dllcache\format.com
- %APPDATA%\Microsoft\Windows\dllcache\iassdo.dll
- %APPDATA%\Microsoft\Windows\dllcache\tcpsvcs.exe
- %APPDATA%\Microsoft\Windows\dllcache\laprxy.dll
- %APPDATA%\Microsoft\Windows\dllcache\oembios.sig
- %APPDATA%\Microsoft\Windows\dllcache\edlin.exe
- %APPDATA%\Microsoft\Windows\dllcache\nscompat.tlb
- %APPDATA%\Microsoft\Windows\dllcache\encdec.dll
- %APPDATA%\Microsoft\Windows\dllcache\icaapi.dll
- %APPDATA%\Microsoft\Windows\dllcache\nlsfunc.exe
- %APPDATA%\Microsoft\Windows\dllcache\netware.drv
- %APPDATA%\Microsoft\Windows\dllcache\svcpack.dll
- %APPDATA%\Microsoft\Windows\dllcache\bootok.exe
- %APPDATA%\Microsoft\Windows\dllcache\mll_qic.dll
- %APPDATA%\Microsoft\Windows\dllcache\vbscript.dll
- %APPDATA%\Microsoft\Windows\dllcache\packager.exe
- %APPDATA%\Microsoft\Windows\dllcache\mdhcp.dll
- %APPDATA%\Microsoft\Windows\dllcache\umdmxfrm.dll
- %APPDATA%\Microsoft\Windows\dllcache\modex.dll
- %APPDATA%\Microsoft\Windows\dllcache\tcpmib.dll
- %APPDATA%\Microsoft\Windows\dllcache\hid.dll
Deletes the following files:
- %TEMP%\tmp1.tmp
- %TEMP%\tmp4.tmp
- C:\System Volume Information\EFS0.LOG
- %APPDATA%\Microsoft\Windows\dllcache\rsmsink.exe
Deletes itself.
Network activity:
Connects to:
- '5.##.34.69':666
Miscellaneous:
Searches for the following windows:
- ClassName: 'NotifyIconOverflowWindow' WindowName: ''
- ClassName: 'TrayNotifyWnd' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''