Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

74fff 42.11%
2adf9 5.26%
b1c6c 15.79%
7e41f 5.26%
30091 5.26%
dce71 10.53%
75e85 5.26%
1eba2 5.26%
d0cff 5.26%
(Note, the developer publishes each variation of this file with the same version, but the hashes are unique.)

PE structurePE file structure

Show functions
Import table
advapi32.dll
OpenServiceA, ControlService, QueryServiceStatus, DeleteService, OpenSCManagerA, CreateServiceA, CloseServiceHandle, SetServiceStatus, RegisterServiceCtrlHandlerA, InitializeSecurityDescriptor, SetSecurityDescriptorDacl, StartServiceCtrlDispatcherA
gdi32.dll
Escape, ExtTextOutA, TextOutA, RectVisible, PtVisible, ScaleWindowExtEx, SetWindowExtEx, ScaleViewportExtEx, SetViewportExtEx, OffsetViewportOrgEx, SetViewportOrgEx, SetMapMode, GetStockObject, SelectObject, RestoreDC, GetClipBox, CreateBitmap, SetTextColor, SetBkColor, GetObjectA, GetDeviceCaps, DeleteObject, DeleteDC, SaveDC
kernel32.dll
FreeLibrary, LoadLibraryA, LocalAlloc, TlsAlloc, GlobalFree, GlobalUnlock, GlobalHandle, GlobalLock, GlobalReAlloc, GlobalAlloc, TlsSetValue, LocalReAlloc, TlsGetValue, GetProcessVersion, lstrcmpA, GlobalFlags, GetCPInfo, GetOEMCP, WriteFile, SetFilePointer, FlushFileBuffers, RtlUnwind, RaiseException, GetStartupInfoA, GetCommandLineA, HeapAlloc, HeapFree, ExitThread, HeapSize, HeapReAlloc, TerminateProcess, GetACP, SetUnhandledExceptionFilter, UnhandledExceptionFilter, FreeEnvironmentStringsA, FreeEnvironmentStringsW, GetEnvironmentStrings, GetEnvironmentStringsW, SetHandleCount, GetStdHandle, GetFileType, HeapDestroy, HeapCreate, VirtualFree, GetStringTypeA, GetStringTypeW, LCMapStringA, LCMapStringW, VirtualAlloc, IsBadWritePtr, IsBadReadPtr, IsBadCodePtr, SetStdHandle, GetVersion, lstrcatA, GlobalGetAtomNameA, lstrcmpiA, GlobalAddAtomA, GlobalFindAtomA, GlobalDeleteAtom, lstrcpyA, GetModuleHandleA, GetProcAddress, EnterCriticalSection, LeaveCriticalSection, DeleteCriticalSection, InitializeCriticalSection, lstrcpynA, SetLastError, CreateEventA, SuspendThread, GetCurrentThreadId, SetThreadPriority, ResumeThread, SetEvent, WaitForSingleObject, MultiByteToWideChar, InterlockedDecrement, InterlockedIncrement, lstrlenA, WideCharToMultiByte, GetModuleFileNameA, CreateMutexA, CreateThread, CreateNamedPipeA, ConnectNamedPipe, ReadFile, FormatMessageA, LocalLock, LocalFree, GetLogicalDrives, DeviceIoControl, Sleep, GetPrivateProfileStringA, ExitProcess, GetLocalTime, WritePrivateProfileStringA, GetLastError, CreateFileA, GetCurrentProcess, CloseHandle, GetEnvironmentVariableA, GetVersionExA
shlwapi.dll
PathFileExistsA
user32.dll
MessageBoxA, GetTopWindow, EnableWindow, CopyRect, GetClientRect, AdjustWindowRectEx, SetFocus, GetSysColor, MapWindowPoints, LoadIconA, SetWindowTextA, IsWindowEnabled, GetSysColorBrush, ReleaseDC, GetDC, GetClassNameA, PtInRect, ClientToScreen, PostQuitMessage, DestroyMenu, TabbedTextOutA, DrawTextA, GrayStringA, GetCapture, GetClassInfoA, RegisterClassA, GetMenu, GetMenuItemCount, GetSubMenu, GetMenuItemID, GetDlgItem, GetWindowTextA, GetDlgCtrlID, DestroyWindow, GetClassLongA, SetPropA, UnhookWindowsHookEx, GetPropA, CallWindowProcA, RemovePropA, GetMessageTime, GetMessagePos, GetLastActivePopup, GetForegroundWindow, SetForegroundWindow, GetWindow, GetWindowLongA, SetWindowLongA, SetWindowPos, RegisterWindowMessageA, SystemParametersInfoA, IsIconic, GetWindowPlacement, GetWindowRect, GetSystemMetrics, GetMenuCheckMarkDimensions, LoadBitmapA, GetMenuState, ModifyMenuA, SetMenuItemBitmaps, CheckMenuItem, EnableMenuItem, GetFocus, GetParent, GetNextDlgTabItem, LoadStringA, GetActiveWindow, SendMessageA, GetKeyState, ValidateRect, IsWindowVisible, PeekMessageA, GetCursorPos, SetWindowsHookExA, WinHelpA, FindWindowA, PostMessageA, LoadCursorA, RegisterClassExA, CreateWindowExA, ShowWindow, DefWindowProcA, DispatchMessageA, TranslateMessage, GetMessageA, TranslateAcceleratorA, LoadAcceleratorsA, UpdateWindow, CallNextHookEx
winspool.drv
OpenPrinterA, DocumentPropertiesA, ClosePrinter

chgservice.exe

Remove chgservice.exe
MD5:   dce71aff23661db0bc0ae096cdcd23f7
SHA1:   41d31e7d05534124d9c9462f4b6f69bbfa907e77
SHA256:   4456fe8727d92e4277fe1a5ee2e6ea03cb717bbcaef25fe7979047d77ba3d788

Overview

chgservice.exe runs as a service under the name Change Modem Device Service within the local user context.

DetailsDetails

File name:chgservice.exe
Typical file path:C:\windows\syswow64\chgservice.exe
Size:132 KB (135,168 bytes)
Digital DNA
File packed:No
.NET CLR:No
More details

BehaviorsBehaviors

Service
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'Change Modem Device Service'

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 36.84%
Microsoft Windows XP 31.58%
Windows 7 Home Premium 15.79%
Windows 7 Professional 10.53%
Windows 7 Home Basic 5.26%

Distribution by countryDistribution by country

India installs about 47.37% of chgservice.exe.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 40.00%
American Megatrends 20.00%
Hewlett-Packard 20.00%
Acer 20.00%
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