PUA_REGCLEAN
a variant of Win32/Systweak potentially unwanted (ESET-NOD32)
Windows
Threat Type: Potentially Unwanted Application
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be manually installed by a user.
TECHNICAL DETAILS
3,662,632 bytes
EXE
29 Apr 2015
Arrival Details
This potentially unwanted application arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It may be manually installed by a user.
Installation
This potentially unwanted application drops the following files:
- %System%\roboot.exe
- %User Temp%\is-B9C19.tmp\_isetup\_shfoldr.dll
- %Application Data%\Nico Mak Computing\WinZip Registry Optimizer\Version 1\results.rcp
- %Windows%\Tasks\WinZip Registry Optimizer_UPDATES.job
- %Windows%\Tasks\WinZip Registry Optimizer_DEFAULT.job
- %All Users Profile%\Desktop\WinZip Registry Optimizer.lnk
- %All Users Profile%\Start Menu\Programs\WinZip Registry Optimizer\WinZip Registry Optimizer.lnk
- %All Users Profile%\Start Menu\Programs\WinZip Registry Optimizer\Uninstall WinZip RegistrRy Optimizer.lnk
- %Program Files%\WinZip Registry Optimizer\Chinese_rcp.ini
- %Program Files%\WinZip Registry Optimizer\CleanSchedule.exe
- %Program Files%\WinZip Registry Optimizer\Danish_rcp.ini
- %Program Files%\WinZip Registry Optimizer\Dutch_rcp.ini
- %Program Files%\WinZip Registry Optimizer\eng_rcp.ini
- %Program Files%\WinZip Registry Optimizer\Finnish_rcp_fi.ini
- %Program Files%\WinZip Registry Optimizer\French_rcp.ini
- %Program Files%\WinZip Registry Optimizer\German_rcp.ini
- %Program Files%\WinZip Registry Optimizer\greek_rcp_el.ini
- %Program Files%\WinZip Registry Optimizer\isxdl.dll
- %Program Files%\WinZip Registry Optimizer\Italian_rcp.ini
- %Program Files%\WinZip Registry Optimizer\Japanese_rcp.ini
- %Program Files%\WinZip Registry Optimizer\korean_rcp.ini
- %Program Files%\WinZip Registry Optimizer\Norwegian_rcp.ini
- %Program Files%\WinZip Registry Optimizer\polish_rcp.ini
- %Program Files%\WinZip Registry Optimizer\portugese_rcp_pt.ini
- %Program Files%\WinZip Registry Optimizer\Portuguese_rcp.ini
- %Program Files%\WinZip Registry Optimizer\russian_rcp_ru.ini
- %Program Files%\WinZip Registry Optimizer\Spanish_rcp.ini
- %Program Files%\WinZip Registry Optimizer\Swedish_rcp.ini
- %Program Files%\WinZip Registry Optimizer\TraditionalCn_rcp_zh-tw.ini
- %Program Files%\WinZip Registry Optimizer\turkish_uninst_tr.ini
- %Program Files%\WinZip Registry Optimizer\unins000.da
- %Program Files%\WinZip Registry Optimizer\unins000.exe
- %Program Files%\WinZip Registry Optimizer\unins000.msg
- %Program Files%\WinZip Registry Optimizer\Winzipro.dll
- %Program Files%\WinZip Registry Optimizer\Winzipro.exe
- %Program Files%\WinZip Registry Optimizer\xmllite.dll
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %All Users Profile% is the All Users folder, where it usually is C:\Documents and Settings\All Users on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\ProgramData on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Program Files% is the Program Files folder, where it usually is C:\Program Files on all Windows operating system versions; C:\Program Files (x86) for 32-bit applications running on Windows 64-bit operating systems.)
Autostart Technique
This potentially unwanted application adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
WROReminder = %Program Files%\WinZip Registry Optimizer\Winzipro.exe -rem
Other System Modifications
This potentially unwanted application adds the following registry keys as part of its installation routine:
HKEY_CURRENT_USER\Software\Licenses
HKEY_LOCAL_MACHINE\Software\Classes\
CLSID\{82F3CB4B-FDE3-B323-7D80-F5834508021C}
HKEY_LOCAL_MACHINE\Software\Classes\
CLSID\{82F3CB4B-FDE3-B323-7D80-F5834508021C}\InProcServer32
HKEY_LOCAL_MACHINE\Software\Classes\
CLSID\{82F3CB4B-FDE3-B323-7D80-F5834508021C}\Containers
HKEY_LOCAL_MACHINE\Software\Classes\
CLSID\{82F3CB4B-FDE3-B323-7D80-F5834508021C}\Containers\
{19E4A5AA-5662-4FC5-A0C0-1758028E1057}
HKEY_LOCAL_MACHINE\Software\Classes\
CLSID\{82F3CB4B-FDE3-B323-7D80-F5834508021C}\Containers\
{537396C6-2D8A-4BB6-9BF8-2F0A8E2A3ADF}