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Win32.HLLM.Reset.506
Added to the Dr.Web virus database:
2016-08-01
Virus description added:
2016-10-13
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:
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
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