Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Human Scheduler Distributed Fax' = '<SYSTEM32>\gpddwwcuuo.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\gpddwwcuuo.exe
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Credential Encryption Identity] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Security Center
Creates and executes the following:
- '<SYSTEM32>\alefwgtpt.exe' "<SYSTEM32>\gpddwwcuuo.exe"
- '%WINDIR%\Temp\pjtlvo49umekxfh.exe' -r 30440 tcp
- '%TEMP%\pjtlvo45frekxfpwaikcg.exe'
- '<SYSTEM32>\gpddwwcuuo.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\kbnyxatiafpaz\run
- <SYSTEM32>\kbnyxatiafpaz\rng
- <SYSTEM32>\kbnyxatiafpaz\cfg
- <SYSTEM32>\kbnyxatiafpaz\por
- %WINDIR%\Temp\pjtlvo49umekxfh.exe
- %TEMP%\pjtlvo45frekxfpwaikcg.exe
- <SYSTEM32>\kbnyxatiafpaz\tst
- <SYSTEM32>\kbnyxatiafpaz\etc
- <SYSTEM32>\alefwgtpt.exe
- <SYSTEM32>\gpddwwcuuo.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\alefwgtpt.exe
- <SYSTEM32>\gpddwwcuuo.exe
Deletes the following files:
- %WINDIR%\Temp\pjtlvo49umekxfh.exe
- %TEMP%\pjtlvo45frekxfpwaikcg.exe
- <DRIVERS>\etc\hosts
Substitutes the HOSTS file.
Network activity:
Connects to:
- 'yo###njoy.net':80
- 'ta###wash.net':80
- 'ab###ach.net':80
- 'lo###oss.net':80
- 'mo###uia.com':80
- 'el#####arimagine.com':80
- 'th###rrefk.com':80
- 'pe###hecon.com':80
TCP:
HTTP GET requests:
- yo###njoy.net/forum/search.php?me#########################################
- ta###wash.net/forum/search.php?me#########################################
- ab###ach.net/forum/search.php?me#########################################
- lo###oss.net/forum/search.php?me#########################################
- mo###uia.com/forum/search.php?me#########################################
- el#####arimagine.com/forum/search.php?me#########################################
- th###rrefk.com/forum/search.php?me#########################################
- pe###hecon.com/forum/search.php?me#########################################
UDP:
- DNS ASK li###hot.net
- DNS ASK so###about.net
- DNS ASK lo###oss.net
- DNS ASK ab###ach.net
- DNS ASK mu###loor.net
- DNS ASK mo###ray.net
- DNS ASK ju###ray.net
- DNS ASK yo###njoy.net
- DNS ASK pe###hecon.com
- DNS ASK mo###uia.com
- DNS ASK el#####arimagine.com
- DNS ASK sa###ave.net
- DNS ASK ta###wash.net
- DNS ASK th###rrefk.com
- '23#.#55.255.250':1900
