Trojan.Packed.24576

To ensure autorun and distribution:

Infects the following executable system files:

%WINDIR%\ServiceProfiles\LocalService\AppData\Roaming\Microsoft\UPnP Device Host\upnphost\udhisapi.dll

Malicious functions:

Executes the following:

'<SYSTEM32>\taskhost.exe' $(Arg0)
'<SYSTEM32>\sdclt.exe' /CONFIGNOTIFICATION
'<SYSTEM32>\sc.exe' start w32time task_started
'<SYSTEM32>\schtasks.exe' /delete /f /TN "Microsoft\Windows\Customer Experience Improvement Program\Uploader"
'<SYSTEM32>\rundll32.exe' dfdts.dll,DfdGetDefaultPolicyAndSMART
'<SYSTEM32>\wsqmcons.exe'
'<SYSTEM32>\rundll32.exe' %TEMP%\1hrj.dat,OKL03
'<SYSTEM32>\rundll32.exe' %TEMP%\1hrj.dat,OKL01
'<SYSTEM32>\rundll32.exe' %TEMP%\1hrj.dat,OKL00
'<SYSTEM32>\ctfmon.exe'
'<SYSTEM32>\rundll32.exe' %TEMP%\1hrj.dat,OKL06
'<SYSTEM32>\rundll32.exe' %TEMP%\1hrj.dat,OKL04

Modifies settings of Windows Internet Explorer:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '2500' = '00000003'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\1] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\0] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\4] '1609' = '00000000'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1609' = '00000000'

Modifies file system :

Creates the following files:

C:\Users\Public\Music\Sample Music\AlbumArt_{5FA05D35-A682-4AF6-96F7-0773E42D4D16}_Large.jpg
C:\Users\Public\Music\Sample Music\AlbumArt_{5FA05D35-A682-4AF6-96F7-0773E42D4D16}_Small.jpg
C:\Users\Public\Music\Sample Music\Folder.jpg
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\SOXZEUJX\httpErrorPagesScripts[1]
C:\Users\Public\Music\Sample Music\AlbumArtSmall.jpg
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\6P5SDOMI\noConnect[1]
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\SOXZEUJX\favcenter[1]
<LS_APPDATA>\Microsoft\Media Player\Art Cache\LocalMLS\{1C1B3F4B-6F81-4D26-8754-8A29BF7D8274}.jpg
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\BOWDBRP7\down[1]
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\YF7T7AK2\background_gradient[1]
<LS_APPDATA>\Microsoft\Media Player\Art Cache\LocalMLS\{DC22F2A6-51E3-4610-9282-0D464E9E862A}.jpg
%TEMP%\jrh1.js
%APPDATA%\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jrh1.lnk
%TEMP%\jrh1.pad
%TEMP%\1hrj.dat
C:\ProgramData\1hrj.dat
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\YF7T7AK2\ErrorPageTemplate[1]
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\BOWDBRP7\errorPageStrings[1]
<LS_APPDATA>\Microsoft\Windows\Temporary Internet Files\Content.IE5\6P5SDOMI\dnserror[1]
C:\ProgramData\Microsoft\RAC\Temp\sqlBC7B.tmp
C:\ProgramData\Microsoft\RAC\Temp\sqlBD37.tmp

Sets the 'hidden' attribute to the following files:

C:\Users\Public\Music\Sample Music\AlbumArt_{5FA05D35-A682-4AF6-96F7-0773E42D4D16}_Small.jpg
<LS_APPDATA>\Microsoft\Media Player\Art Cache\LocalMLS\{DC22F2A6-51E3-4610-9282-0D464E9E862A}.jpg
<LS_APPDATA>\Microsoft\Media Player\Art Cache\LocalMLS\{1C1B3F4B-6F81-4D26-8754-8A29BF7D8274}.jpg
C:\Users\Public\Music\Sample Music\AlbumArtSmall.jpg
C:\Users\Public\Music\Sample Music\Folder.jpg
C:\Users\Public\Music\Sample Music\AlbumArt_{5FA05D35-A682-4AF6-96F7-0773E42D4D16}_Large.jpg

Deletes the following files:

Network activity:

Connects to:

UDP:

Miscellaneous:

Searches for the following windows: