Win32.HLLW.Autoruner.51546

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /O'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /X'
[<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\2807939568] 'Name' = '"%TEMP%\3.tmp"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yeisiup' = '%HOMEPATH%\yeisiup.exe /m'

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>:\AgNG.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\yeisiup.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\yeisiupx.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Creates and executes the following:

%HOMEPATH%\vopnat.exe
%HOMEPATH%\yeisiup.exe
%HOMEPATH%\uwray.exe
%HOMEPATH%\Tfmjq27d31.exe
%HOMEPATH%\uvray.exe

Executes the following:

<SYSTEM32>\tasklist.exe

Injects code into

the following system processes:

<SYSTEM32>\spoolsv.exe

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'

Modifies file system :

Creates the following files:

%WINDIR%\Temp\4.tmp
%TEMP%\2.tmp
%TEMP%\Rlb..bat
%HOMEPATH%\yeisiup.exe
%HOMEPATH%\uvray.exe
%HOMEPATH%\Tfmjq27d31.exe
%HOMEPATH%\vopnat.exe
%HOMEPATH%\uwray.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\yeisiup.exe
<Drive name for removable media>:\yeisiupx.exe
<Drive name for removable media>:\AgNG.ico
%HOMEPATH%\yeisiup.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files:

%HOMEPATH%\Tfmjq27d31.exe
%HOMEPATH%\uwray.exe
%WINDIR%\Temp\4.tmp
%TEMP%\3.tmp
<DRIVERS>\etc\hosts

Network activity:

Connects to:

'pu##bug.in':80
'ap#.#ostip.info':80
'74.##5.232.51':80

TCP:

HTTP GET requests:

ap#.#ostip.info/country.php
74.##5.232.51/

HTTP POST requests:

pu##bug.in/90ds8c9ds8c9d0s8cds.php?in##############################################################################################################

UDP:

DNS ASK google.com
DNS ASK ap#.#ostip.info
DNS ASK pu##bug.in
DNS ASK ti##pic.com
DNS ASK ma##h.com
DNS ASK da##.net

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''
ClassName: 'MS_WebcheckMonitor' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information