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Win32.HLLW.Facebook.1797
Added to the Dr.Web virus database:
2013-04-20
Virus description added:
2013-04-29
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SYS32DLL' = 'SYS32DLL'
Malicious functions:
Creates and executes the following:
'<SYSTEM32>\SYS32DLL.exe'
Executes the following:
'<SYSTEM32>\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyOverride /d "*.local;<local>" /f
'<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyOverride /d "*.local;<local>" /f
'<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 01 /f
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v SYS32DLL /d SYS32DLL /f
'<SYSTEM32>\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 01 /f
'<SYSTEM32>\netsh.exe' firewall add portopening TCP 80 SYS32DLL ENABLE
'<SYSTEM32>\cmd.exe' /c c:\SYS32DLL.bat
'<SYSTEM32>\netsh.exe' firewall add portopening TCP 7171 SYS32DLL ENABLE
'<SYSTEM32>\reg.exe' add "HKLM\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /d "http=localhost:7171" /f
'<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /d "http=localhost:7171" /f
Modifies settings of Windows Internet Explorer:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyOverride' = '*.local;<local>'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = 'http=localhost:7171'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = 'http=localhost:7171'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyOverride' = '*.local;<local>'
Modifies file system :
Creates the following files:
<SYSTEM32>\tmps.logef
C:\tman.tmp
C:\SYS32DLL.bat
<SYSTEM32>\SYS32DLL.exe
Deletes itself.
Network activity:
Connects to:
'ma####052009.com':80
'zz##ns.com':80
TCP:
HTTP GET requests:
zz##ns.com/v50/?v=################################
HTTP POST requests:
ma####052009.com/tman/?a=######################
UDP:
DNS ASK ma####052009.com
DNS ASK zz##ns.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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