Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'ByjJjqlf' = '%TEMP%\byjjjqlf.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'RarExsdb' = '<LS_APPDATA>\jwaroevi\rarexsdb.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,<LS_APPDATA>\jwaroevi\rarexsdb.exe'
Creates or modifies the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Update
- Windows Security Center
Creates and executes the following:
- '%HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe'
Executes the following:
- '<SYSTEM32>\svchost.exe'
- '%HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe'
- '<SYSTEM32>\cmd.exe' /C ""%TEMP%\byjjjqlf.exe""
- '%TEMP%\byjjjqlf.exe'
Injects code into
the following system processes:
- <SYSTEM32>\svchost.exe
Modifies file system:
Creates the following files:
- %ALLUSERSPROFILE%\Application Data\ybfcuwpc.log
- %TEMP%\nsm6.tmp\System.dll
- %TEMP%\nsw5.tmp
- <LS_APPDATA>\lawhwilb.log
- %TEMP%\nsjA.tmp\System.dll
- %TEMP%\nsd9.tmp
- <LS_APPDATA>\jwaroevi\rarexsdb.exe
- %TEMP%\settings
- %TEMP%\jquery.orbit-1.2.3.js
- %TEMP%\nsd2.tmp
- %TEMP%\drupal.js
- %TEMP%\byjjjqlf.exe
- %TEMP%\nsd3.tmp\System.dll
- %TEMP%\qZAcyIEvlk2iXd1k.avf
Sets the 'hidden' attribute to the following files:
- %HOMEPATH%\Start Menu\Programs\Startup\rarexsdb.exe
Network activity:
Connects to:
- 'vu#####xhkgjeqll.click':442
- 'wm####caqspdg.eu':442
- 'hv####rqddfof.bid':442
- 'sm####kclunrd.click':442
- 'ar####vopgxpah.eu':442
- 'ae###yamuwb.bid':442
- 'rg###qlu.click':442
- 'oq#####ksujhud.click':442
- '12#.#25.114.144':80
- 'xx######ygynpcwujdx.click':442
- 'ij####atuadmd.eu':442
- 'ry####whnhygtj.bid':442
UDP:
- DNS ASK vu#####xhkgjeqll.click
- DNS ASK wm####caqspdg.eu
- DNS ASK hv####rqddfof.bid
- DNS ASK sm####kclunrd.click
- DNS ASK ar####vopgxpah.eu
- DNS ASK ae###yamuwb.bid
- DNS ASK rg###qlu.click
- DNS ASK oq#####ksujhud.click
- DNS ASK ba##u.com
- DNS ASK xx######ygynpcwujdx.click
- DNS ASK ij####atuadmd.eu
- DNS ASK ry####whnhygtj.bid