Win32.HLLW.Autoruner2.9248

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /f'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /k'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yialee' = '%HOMEPATH%\yialee.exe /c'

Creates the following files on removable media:

<Drive name for removable media>:\Naked.exe
<Drive name for removable media>:\Webcam.exe
<Drive name for removable media>:\Password.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\yialee.exe
<Drive name for removable media>:\I love you.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%\yialee.exe'

Modifies file system :

Creates the following files:

%HOMEPATH%\c\1.exe
%HOMEPATH%\c\2.exe
%HOMEPATH%\c\RCXD.tmp
%HOMEPATH%\c\autorun.inf
%HOMEPATH%\RCXA.tmp
%HOMEPATH%\RCXB.tmp
%HOMEPATH%\RCXC.tmp
%HOMEPATH%\c\RCX10.tmp
%HOMEPATH%\c\RCX11.tmp
%HOMEPATH%\c\RCX12.tmp
%HOMEPATH%\c\4.exe
%HOMEPATH%\c\3.exe
%HOMEPATH%\c\RCXE.tmp
%HOMEPATH%\c\RCXF.tmp
%HOMEPATH%\3.exe
%HOMEPATH%\RCX2.tmp
%HOMEPATH%\RCX3.tmp
%HOMEPATH%\RCX1.tmp
%HOMEPATH%\yialee.exe
%HOMEPATH%\1.exe
%HOMEPATH%\2.exe
%HOMEPATH%\RCX7.tmp
%HOMEPATH%\RCX8.tmp
%HOMEPATH%\RCX9.tmp
%HOMEPATH%\RCX6.tmp
%HOMEPATH%\4.exe
%HOMEPATH%\RCX4.tmp
%HOMEPATH%\RCX5.tmp

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\yialee.exe
%HOMEPATH%\c\autorun.inf
%HOMEPATH%\yialee.exe
<Drive name for removable media>:\autorun.inf

Deletes the following files:

%HOMEPATH%\c\3.exe
%HOMEPATH%\c\2.exe
%HOMEPATH%\c\4.exe
%HOMEPATH%\c\1.exe
%HOMEPATH%\c\autorun.inf
%HOMEPATH%\2.exe
<SYSTEM32>\PerfStringBackup.TMP
%HOMEPATH%\3.exe
%HOMEPATH%\1.exe
%HOMEPATH%\4.exe

Moves the following files:

from %HOMEPATH%\RCXC.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\c\RCXD.tmp to %HOMEPATH%\c\2.exe
from %HOMEPATH%\RCXA.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\RCXB.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\c\RCXE.tmp to %HOMEPATH%\c\3.exe
from %HOMEPATH%\c\RCX11.tmp to %HOMEPATH%\c\4.exe
from %HOMEPATH%\c\RCX12.tmp to %HOMEPATH%\c\4.exe
from %HOMEPATH%\c\RCXF.tmp to %HOMEPATH%\c\3.exe
from %HOMEPATH%\c\RCX10.tmp to %HOMEPATH%\c\4.exe
from %HOMEPATH%\RCX3.tmp to %HOMEPATH%\3.exe
from %HOMEPATH%\RCX4.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\RCX1.tmp to %HOMEPATH%\2.exe
from %HOMEPATH%\RCX2.tmp to %HOMEPATH%\3.exe
from %HOMEPATH%\RCX5.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\RCX8.tmp to %HOMEPATH%\3.exe
from %HOMEPATH%\RCX9.tmp to %HOMEPATH%\3.exe
from %HOMEPATH%\RCX6.tmp to %HOMEPATH%\4.exe
from %HOMEPATH%\RCX7.tmp to %HOMEPATH%\2.exe

Network activity:

Connects to:

'ns#.##ckdates17.com':7008
'ns#.##ckdates16.com':7008
'ns#.##ckdates8.com':7008
'ns#.##ckdates4.com':7008
'ns#.##ckdates1.org':7008
'ns#.##ckdates3.com':7008
'ns#.##ckdates11.com':7008
'ns#.##ckdates15.com':7008
'ns#.##ckdates5.com':7008
'ns#.##ckdates2.com':7008
'ns#.##ckdates1.com':7008
'ns#.##ckdates9.com':7008
'ns#.##ckdates3.net':7008
'ns#.##ckdates2.net':7008
'ns#.##ckdates10.com':7008
'ns#.##ckdates1.net':7008

UDP:

DNS ASK ns#.##ckdates17.com
DNS ASK ns#.##ckdates16.com
DNS ASK ns#.##ckdates8.com
DNS ASK ns#.##ckdates4.com
DNS ASK ns#.##ckdates1.org
DNS ASK ns#.##ckdates3.com
DNS ASK ns#.##ckdates11.com
DNS ASK ns#.##ckdates15.com
DNS ASK ns#.##ckdates5.com
DNS ASK ns#.##ckdates2.com
DNS ASK ns#.##ckdates1.com
DNS ASK ns#.##ckdates9.com
DNS ASK ns#.##ckdates3.net
DNS ASK ns#.##ckdates2.net
DNS ASK ns#.##ckdates10.com
DNS ASK ns#.##ckdates1.net

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: '(null)'

Technologies

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Technical Information