Trojan.PWS.Siggen2.1567

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'byway' = '"%ProgramFiles%\Promontories\reclaimed.exe"'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'animas' = '"%ProgramFiles%\repossessed\animas.exe"'

Creates or modifies the following files:

%HOMEPATH%\Start Menu\Programs\Startup\telangiectasia.lnk

Malicious functions:

Creates and executes the following:

'%TEMP%\nsh2.tmp\115049.exe'
'%TEMP%\nsh2.tmp\NMcompelled.exe' "%ProgramFiles%\tots\tots.exe" "k83024813"
'%TEMP%\nsh2.tmp\NMcompelled.exe' "%ProgramFiles%\Lethe\reclaimed.exe" "83024813"
'%ProgramFiles%\repossessed\animas.exe'
'%TEMP%\nsxB.tmp\nsC.tmp' taskkill /im chrome.exe
'%TEMP%\nsh2.tmp\109404.exe'
'%TEMP%\nsh2.tmp\53827.exe'
'%TEMP%\nsh2.tmp\129241.exe'
'%TEMP%\nsh2.tmp\NMcompelled.exe' "%ProgramFiles%\Promontories\reclaimed.exe" "43830901"
'%TEMP%\nsh2.tmp\82260.exe'
'%ProgramFiles%\Promontories\reclaimed.exe'
'%ProgramFiles%\Lethe\reclaimed.exe'
'%TEMP%\nsh2.tmp\NMcompelled.exe' "<LS_APPDATA>\reclaimed.exe" "31678537"
'%TEMP%\nsh2.tmp\32439.exe'

Executes the following:

'<SYSTEM32>\taskkill.exe' /im chrome.exe

Searches for registry branches where third party applications store passwords:

[<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]

Modifies file system:

Creates the following files:

%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[4].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[3].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[2].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[7].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[6].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[5].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\TaC2oGx0oGx1oGx71v03TaC1oGx[2].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\YPORKZYZ\TaC2oGx0oGx1oGx71v03TaC1oGx[1].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[1].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\TaC2oGx0oGx1oGx71v03TaC1oGx[5].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\TaC2oGx0oGx1oGx71v03TaC1oGx[4].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\TaC2oGx0oGx1oGx71v03TaC1oGx[3].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[16].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[15].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[14].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\TaC2oGx0oGx1oGx71v03TaC1oGx[2].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\YPORKZYZ\TaC2oGx0oGx1oGx71v03TaC1oGx[2].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[17].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[10].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[9].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[8].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[13].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[12].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\2VAZY7AN\TaC2oGx0oGx1oGx71v03TaC1oGx[11].html
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\U98D4X8H\TaC2oGx0oGx1oGx71v03TaC1oGx[1].html
%TEMP%\nsh2.tmp\115049.exe
%TEMP%\nsh2.tmp\Microsoft.Win32.TaskScheduler.dll
%TEMP%\nsh2.tmp\NMcompelled.exe
%ProgramFiles%\Promontories\reclaimed.exe
%ProgramFiles%\Promontories\reclaimed.dll
%ProgramFiles%\Promontories\Promontories.exe
%TEMP%\nsh2.tmp\53827.exe
%TEMP%\nsh2.tmp\32439.exe
%TEMP%\nsh2.tmp\23327.exe
%TEMP%\nsh2.tmp\129241.exe
%TEMP%\nsh2.tmp\109404.exe
%TEMP%\nsh2.tmp\82260.exe
%TEMP%\nsxB.tmp\nsExec.dll
%WINDIR%\reimpose.exe
%TEMP%\nsv9.tmp\AccessControl.dll
%TEMP%\nsvF.tmp\ShellLink.dll
%HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\TaC2oGx0oGx1oGx71v03TaC1oGx[1].html
%TEMP%\nsxB.tmp\nsC.tmp
%ProgramFiles%\Lethe\reclaimed.exe
%TEMP%\nst5.tmp\AccessControl.dll
<LS_APPDATA>\reclaimed.exe
%ProgramFiles%\repossessed\animas.exe
%TEMP%\nsq7.tmp\SimpleFC.dll
%ProgramFiles%\tots\tots.exe

Deletes the following files:

%TEMP%\nsvF.tmp\ShellLink.dll
%TEMP%\nsv9.tmp\AccessControl.dll
%TEMP%\nst5.tmp\AccessControl.dll
%TEMP%\nsq7.tmp\SimpleFC.dll

Modifies the HOSTS file.

Network activity:

Connects to:

'ww##.##piensgrafted.pw':80
'localhost':1045
'localhost':1039
'localhost':1037
'www.sa####sgrafted.pw':80

TCP:

HTTP GET requests:

http://ww##.##piensgrafted.pw/TaC2oGx0oGx1oGx71v03TaC1oGx.html?tr##############################################
http://www.sa####sgrafted.pw/TaC2oGx0oGx1oGx71v03TaC1oGx.html?tr##############################################

UDP: