Exploit.Siggen3.11888

Technical Information

To ensure autorun and distribution

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\MsRkNrL] 'Start' = '00000002'
[<HKLM>\System\CurrentControlSet\Services\MsRkNrL] 'ImagePath' = '<SYSTEM32>\wscript.exe //B "C:\autoexec.vbs"'

Creates the following services

'MsRkNrL' <SYSTEM32>\wscript.exe //B "C:\autoexec.vbs"

Malicious functions

Creates and executes the following (exploit)

'<SYSTEM32>\wscript.exe' //B "%TEMP%\rknrl.vbs"

Modifies file system

Creates the following files

%TEMP%\dm6331.tmp
%WINDIR%\temp\rada320e.tmp
%WINDIR%\temp\rada6f4f.tmp
%WINDIR%\temp\rad938d9.tmp
%WINDIR%\temp\rad6c629.tmp
%WINDIR%\temp\radb75cb.tmp
%WINDIR%\temp\rad52528.tmp
%WINDIR%\temp\radbdcb9.tmp
%TEMP%\rad828ea.tmp
%WINDIR%\temp\rad78828.tmp
%WINDIR%\temp\radd22d7.tmp
%WINDIR%\temp\radf6c4a.tmp
%WINDIR%\temp\rad87379.tmp
%WINDIR%\temp\rad1ed29.tmp
%WINDIR%\temp\rad87cd8.tmp
%TEMP%\radbd2d9.tmp
%TEMP%\rad7f608.tmp
%WINDIR%\temp\rad8a14a.tmp
%TEMP%\rad4cab5.tmp
%WINDIR%\temp\raddf249.tmp
%WINDIR%\temp\rad85ab0.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\rknrl[1].vbs
C:\dm6331.tmp
C:\autoexec.vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\dm6331[1].tmp
%WINDIR%\temp\rad739bb.tmp
%WINDIR%\temp\rad43b8c.tmp
%WINDIR%\temp\rad5e17a.tmp
%TEMP%\rad71f3a.tmp
%TEMP%\chrome.exe
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\dm6331[1].tmp
%WINDIR%\temp\rad3717f.tmp
%WINDIR%\temp\rad7e840.tmp
%WINDIR%\temp\radb563d.tmp
%WINDIR%\temp\rada569f.tmp
%WINDIR%\temp\rad0dd39.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\playback[2].php
%WINDIR%\temp\rad73b19.tmp
%TEMP%\rad676bb.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\rknrl[1].vbs
%WINDIR%\temp\radb636d.tmp
%WINDIR%\temp\rad35589.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\api[1]
%TEMP%\radfab66.tmp
%WINDIR%\temp\rad4fa3f.tmp
%TEMP%\rad29b9a.tmp
%TEMP%\radf30bb.tmp
%TEMP%\radf88eb.tmp
%WINDIR%\temp\rknrl.vbs
%WINDIR%\temp\winstart.vbs
%WINDIR%\temp\dm6331.tmp
%TEMP%\winstart.vbs
%TEMP%\rknrl.vbs
%TEMP%\rad975aa.tmp
%WINDIR%\temp\rad76a71.tmp
%WINDIR%\temp\rade9499.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\rknrl[1].vbs
%WINDIR%\temp\rade8e9c.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\api[1]
%WINDIR%\temp\rad4b0fc.tmp
%WINDIR%\temp\rad4ebd9.tmp
%WINDIR%\temp\radfda4a.tmp
%WINDIR%\temp\radfcacf.tmp
%WINDIR%\temp\rad3c16e.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\url[1].htm
%WINDIR%\temp\rad24b10.tmp
%WINDIR%\temp\radea93b.tmp
%WINDIR%\temp\radaa881.tmp
%WINDIR%\temp\rad3d45e.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\dm6331[2].tmp

Sets the 'hidden' attribute to the following files

C:\autoexec.vbs
C:\dm6331.tmp

Deletes the following files

%TEMP%\dm6332.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\playback[2].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\url[1].htm
%WINDIR%\temp\dm6332.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\dm6331[2].tmp

Moves the following files

from %TEMP%\radf88eb.tmp to %TEMP%\dm6332.tmp
from %WINDIR%\temp\rad35589.tmp to %WINDIR%\temp\dm6332.tmp

Substitutes the following files

%TEMP%\dm6332.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\api[1]
%WINDIR%\temp\dm6332.tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\dm6331[1].tmp
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\api[1]
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\59o0eoqa\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\t5levnel\url[1].htm
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\rknrl[1].vbs
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\0o42hqll\playback[1].php
<SYSTEM32>\config\systemprofile\appdata\local\microsoft\windows\<INETFILES>\content.ie5\jh3iwefd\rknrl[1].vbs

Network activity

Connects to

'ap#.##herscan.io':80
'ai########ill.aigoingtokill.club':80
'm.#####ngtokill.club':80

TCP

HTTP GET requests

http://ap#.##herscan.io/api?mo#############################################################################
http://ai########ill.aigoingtokill.club/ctrl/playback.php
http://ai########ill.aigoingtokill.club/ctrl/file/DM6331.TMP
http://ai########ill.aigoingtokill.club/ctrl/file/rknrl.vbs
http://ai########ill.aigoingtokill.club/ctrl/url.html
http://ai########ill.aigoingtokill.club/ctrl/pool.txt
http://ai########ill.aigoingtokill.club/ctrl/Normal.doc

UDP

DNS ASK ap#.##herscan.io
DNS ASK ai########ill.aigoingtokill.club
DNS ASK m.#####ngtokill.club

Miscellaneous

Creates and executes the following

'<SYSTEM32>\wscript.exe' //B "%WINDIR%\TEMP\rknrl.vbs"
'<SYSTEM32>\wscript.exe' //B "%TEMP%\winstart.vbs"
'<SYSTEM32>\wscript.exe' //B "%WINDIR%\TEMP\winstart.vbs"
'<SYSTEM32>\wscript.exe' //B "%TEMP%\rknrl.vbs"' (with hidden window)

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