Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

2, 7, 10, 0 10.00%
2, 6, 0, 0 3.33%
2, 5, 1, 0 3.33%
2.0.4.0 36.67%
2.0.3.0 3.33%
2.0.2.0 36.67%
2.0.2.0 6.67%

Relationships

Parent processes
Related files

PE structurePE file structure

Show functions
Import table
advapi32.dll
ImpersonateNamedPipeClient, RevertToSelf, ImpersonateLoggedOnUser, SetTokenInformation, CreateProcessAsUserW, ControlService, DuplicateToken, DuplicateTokenEx, OpenThreadToken, RegSetValueExW, RegCloseKey, RegDeleteValueW, RegDeleteKeyW, RegOpenKeyW, RegQueryValueExW, RegCreateKeyExW, RegEnumKeyW, RegCreateKeyW, SetEntriesInAclW, SetSecurityDescriptorDacl, InitializeSecurityDescriptor, ConvertStringSidToSidW, CopySid, GetTokenInformation, OpenProcessToken, RegisterServiceCtrlHandlerW, SetServiceStatus, StartServiceCtrlDispatcherW, SetSecurityInfo, CreateServiceW, CloseServiceHandle, DeleteService, OpenSCManagerW, OpenServiceW, ChangeServiceConfig2W, StartServiceW, QueryServiceStatusEx, ReportEventW, RegisterEventSourceW
comctl32.dll
InitCommonControlsEx
gdi32.dll
GetObjectW, BitBlt, DeleteDC, CreateDIBSection, GetDIBits, GetCurrentObject, DeleteObject, SelectObject, CreateCompatibleDC, GetBitmapBits, CreateDCW, ExtEscape
kernel32.dll
ProcessIdToSessionId, Sleep, FindFirstFileW, SetErrorMode, DisconnectNamedPipe, SetNamedPipeHandleState, CreatePipe, SetHandleInformation, GetOverlappedResult, CreateNamedPipeW, ConnectNamedPipe, CreateFileMappingW, CreateEventW, MapViewOfFile, DuplicateHandle, WaitForMultipleObjects, GetExitCodeProcess, CreateProcessW, ReleaseMutex, GetLogicalDriveStringsW, CreateThread, ResumeThread, SetEndOfFile, SystemTimeToFileTime, GetLocalTime, SetEnvironmentVariableA, RemoveDirectoryW, CompareStringA, ReadFile, FlushFileBuffers, CreateFileA, WriteConsoleW, GetConsoleOutputCP, WriteConsoleA, SetStdHandle, CreateDirectoryW, SetFileTime, MoveFileW, GlobalUnlock, GlobalAlloc, GlobalLock, GetModuleHandleW, DeleteFileW, CreateMutexW, FindNextFileW, SetEvent, WaitForSingleObject, OpenThread, GetModuleFileNameW, GetVersionExW, GetComputerNameW, GetProcAddress, LoadLibraryW, FreeLibrary, LocalFree, LocalAlloc, GetCurrentProcessId, CloseHandle, GetCurrentThreadId, CreateFileW, SetUnhandledExceptionFilter, GetLastError, FormatMessageW, DeleteCriticalSection, EnterCriticalSection, LeaveCriticalSection, InitializeCriticalSection, GetCurrentProcess, MultiByteToWideChar, WideCharToMultiByte, CompareStringW, FindClose, GetFileSizeEx, UnmapViewOfFile, GetEnvironmentStringsW, GetConsoleMode, GetStartupInfoW, TerminateProcess, UnhandledExceptionFilter, IsDebuggerPresent, GetSystemTimeAsFileTime, HeapFree, TlsGetValue, TlsAlloc, TlsSetValue, TlsFree, InterlockedIncrement, SetLastError, InterlockedDecrement, HeapSize, ExitProcess, WriteFile, GetStdHandle, GetModuleFileNameA, FreeEnvironmentStringsW, GetModuleHandleA, GetCommandLineW, SetHandleCount, GetFileType, GetStartupInfoA, HeapCreate, VirtualFree, QueryPerformanceCounter, GetTickCount, HeapAlloc, RaiseException, GetCPInfo, GetACP, GetOEMCP, IsValidCodePage, LCMapStringW, VirtualAlloc, HeapReAlloc, LoadLibraryA, InitializeCriticalSectionAndSpinCount, RtlUnwind, LCMapStringA, GetStringTypeA, GetStringTypeW, GetLocaleInfoA, SetFilePointer, GetConsoleCP, FreeResource, FindResourceW, LoadResource, LockResource, FileTimeToSystemTime, OpenProcess
psapi.dll
GetModuleFileNameExW
shell32.dll
SHGetSpecialFolderPathW, ShellExecuteExW, ShellExecuteW, Shell_NotifyIconW, CommandLineToArgvW
user32.dll
SetForegroundWindow, LoadMenuW, RemoveMenu, SetMenuDefaultItem, CloseClipboard, GetMessageW, IsClipboardFormatAvailable, GetClipboardData, EmptyClipboard, ChangeClipboardChain, OpenClipboard, SendMessageW, SetClipboardData, SetClipboardViewer, EnumWindows, IsWindowVisible, RegisterWindowMessageW, DrawIconEx, GetIconInfo, GetCursorInfo, GetWindowRect, GetForegroundWindow, GetClassNameW, GetCursorPos, GetDC, CallNextHookEx, WaitMessage, PeekMessageW, PostThreadMessageW, SetWindowsHookExW, UnhookWindowsHookEx, DispatchMessageW, SendInput, GetWindowInfo, MoveWindow, MapWindowPoints, CreateDialogParamW, EndDialog, SetWindowLongW, GetWindowLongW, DialogBoxParamW, GetSubMenu, SetWindowTextW, ShowWindow, GetWindowTextW, InvalidateRect, SetFocus, EnumChildWindows, DefWindowProcW, RegisterClassW, CreateWindowExW, UnregisterClassW, DestroyIcon, GetClientRect, GetUserObjectInformationW, SetThreadDesktop, CloseDesktop, OpenDesktopW, OpenInputDesktop, GetThreadDesktop, IsDialogMessageW, TranslateMessage, PostQuitMessage, OpenWindowStationW, CloseWindowStation, SetProcessWindowStation, ExitWindowsEx, LockWorkStation, ToUnicodeEx, GetWindowThreadProcessId, GetKeyboardLayout, GetKeyState, MapVirtualKeyW, VkKeyScanExW, GetSystemMetrics, SetTimer, KillTimer, GetDlgItem, PostMessageW, FindWindowW, SystemParametersInfoW, LoadIconW, LoadStringW, MessageBoxW, TrackPopupMenu, DestroyWindow, SetClassLongW, IsWindow, EnumDisplayMonitors, GetWindow, FindWindowExW, ChangeDisplaySettingsExW, EnumDisplayDevicesW
version.dll
GetFileVersionInfoSizeW, VerQueryValueW, GetFileVersionInfoW
wtsapi32.dll
WTSFreeMemory, WTSQuerySessionInformationW

tvnserver.exe

TightVNC by GlavSoft LLC. (Signed)

Remove tvnserver.exe
Version:   2.0.4.0
MD5:   aaf458cc200326bef602b5339400bf86
SHA1:   4836d619806039d619221d486dda5fc8b0fdaf9f
SHA256:   dd47c58a855e4fe2d9afd9912c0661871f0a4ca385d864267f5245480ab8f4d7

Overview

tvnserver.exe runs as a service under the name TightVNC Server (tvnserver) within the local user context. It is set to be start when the PC boots and any user logs into Windows (added to the Run registry key for the all users under the local machine). It is installed with a couple of know programs including TightVNC 2.0.4 published by GlavSoft LLC., TightVNC 1.3.9 from TightVNC Group and TightVNC 1.3.9 by TightVNC Group. The file is digitally signed by GlavSoft LLC. which was issued by the Thawte certificate authority (CA).

DetailsDetails

File name:tvnserver.exe
Publisher:GlavSoft LLC.
Product name:TightVNC
Description:TightVNC Server for Windows
Typical file path:C:\Program Files\common files\comodo\tvnserver.exe
File version:2.0.4.0
Size:809.52 KB (828,944 bytes)
Certificate
Issued to:GlavSoft LLC.
Authority (CA):Thawte
Expiration date:Friday, March 29, 2013
Digital DNA
PE subsystem:Windows GUI
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
GlavSoft LLC.
11% remove
TightVNC is a cross-platform open source remote desktop software application that uses and extends VNC's RFB protocol to control another computer's screen remotely. TightVNC uses so-called "tight encoding" of areas, which is effectively a combination of JPEG compression and other types of encoding. It is possible to watch videos and play DirectX games through TightVNC over a broadband connection, albeit at a low frame rate. TightVNC inc...

BehaviorsBehaviors

Services
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'tvnserver' (TightVNC Server)
  • tvnserver
Startup files (all users) run
Runs under the registry key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'
  • 'tvncontrol' → "C:\Program Files\Common Files\Comodo\tvnserver.exe" -controlservice -slave

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00255394%
0.028634%
Kernel CPU:0.00212719%
0.013761%
User CPU:0.00042675%
0.014873%
Kernel CPU time:69,395,355 ms/min
100,923,805ms/min
Context switches:44/sec
284/sec
Memory
Private memory:1.78 MB
21.59 MB
Private (maximum):3.32 MB
Private (minimum):2.15 MB
Non-paged memory:1.78 MB
21.59 MB
Virtual memory:56.08 MB
140.96 MB
Virtual memory (peak):57.31 MB
169.69 MB
Working set:2.54 MB
18.61 MB
Working set (peak):5 MB
37.95 MB
Resource allocations
Threads:8
12
Handles:117
600
GUI GDI count:16
103
GUI GDI peak:20
142
GUI USER count:9
49
GUI USER peak:9
71

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command lines:
  • "C:\Program Files\tightvnc\tvnserver.exe" -service
  • "C:\Program Files\common files\comodo\tvnserver.exe" -service
  • "C:\Program Files\tightvnc\tvnserver.exe" -controlservice -slave
  • "C:\Program Files\common files\comodo\tvnserver.exe" -controlservice -slave
Owner:User
Windows Service
Service name:tvnserver
Display name:TightVNC Server
Type:Win32OwnProcess
Parent processes:

ResourcesThreads

Averages
 
tvnserver.exe (main module)
Total CPU:0.01501980%
0.272967%
Kernel CPU:0.01486664%
0.107585%
User CPU:0.00015316%
0.165382%
CPU cycles:480,220/sec
5,741,424/sec
Context switches:4/sec
79/sec
Memory:828 KB
1.16 MB
ADVAPI32.dll
Total CPU:0.00089368%
Kernel CPU:0.00089368%
User CPU:0.00000000%
CPU cycles:28,364/sec
Memory:764 KB
sechost.dll
Total CPU:0.00055833%
Kernel CPU:0.00055833%
User CPU:0.00000000%
CPU cycles:15,818/sec
Memory:100 KB
wow64.dll
Total CPU:0.00003080%
Kernel CPU:0.00003080%
User CPU:0.00000000%
CPU cycles:668/sec
Memory:252 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 51.85%
Microsoft Windows XP 14.81%
Windows 7 Professional 14.81%
Windows 7 Ultimate N 11.11%
Windows Vista Ultimate 3.70%
Windows 8 Pro 3.70%

Distribution by countryDistribution by country

United States installs about 38.46% of TightVNC.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Sony 53.33%
Acer 33.33%
Dell 13.33%
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