Should I block it?

45%

45% of PCs block this file from running.

Possible reason:

Performance resource utilization

Additional versions

6.13.0.13771	10.78%
6.12.0.13601	2.61%
6.11.0.13348	4.17%
6.11.0.13307	0.87%
6.10.0.13089	1.39%
6.9.0.12585	12.17%
6.8.0.12323	0.17%
6.7.0.12055	4.52%
6.6.0.11664	16.70%
6.5.0.11422	12.52%
6.4.0.11328	4.87%
6.3.0.11079	20.17%
6.2.0.10687	2.96%
6.1.0.10441	2.78%
6.0.0.10297	2.09%
6.0.0.10201	1.22%

Relationships

Parent process

services.exe (Services and Controller app by Microsoft)

Related files

PE file structure

Show functions

Import table

advapi32.dll

ReportEventW, OpenServiceW, StartServiceCtrlDispatcherW, OpenSCManagerW, DeleteService, CloseServiceHandle, CreateServiceW, ConvertStringSecurityDescriptorToSecurityDescriptorW, DeregisterEventSource, ReportEventA, RegisterEventSourceA, CryptEnumProvidersA, CryptReleaseContext, CryptDestroyKey, CryptGetProvParam, CryptAcquireContextA, CryptGetUserKey, CryptExportKey, CryptDestroyHash, CryptSignHashA, CryptSetHashParam, CryptCreateHash, CryptDecrypt, StartServiceW, RegSetValueExW, RegCloseKey, RegOpenKeyExW, RegQueryValueExW, RegCreateKeyExW, ControlService, RegisterServiceCtrlHandlerW, SetServiceStatus, QueryServiceStatus, RegisterEventSourceW, CryptGenRandom, InitializeSecurityDescriptor, SetSecurityDescriptorDacl, GetSidSubAuthorityCount, GetSidSubAuthority, GetTokenInformation, OpenProcessToken, RegEnumKeyExW, RegDeleteKeyW, RegQueryInfoKeyW

crypt32.dll

CertGetCertificateContextProperty, CertOpenStore, CertFindCertificateInStore, CertEnumCertificatesInStore, CertCloseStore, CertDuplicateCertificateContext, CertFreeCertificateContext

iphlpapi.dll

GetAdaptersInfo

kernel32.dll

DllMain

ole32.dll

CoUninitialize, CoInitialize, CoTaskMemFree, CoCreateInstance

shell32.dll

ShellExecuteW, SHGetFolderPathW

shlwapi.dll

PathFileExistsW, PathAddBackslashW, PathCombineW, StrCmpIW, PathFindFileNameW

user32.dll

GetProcessWindowStation, MessageBoxA, GetUserObjectInformationW, LoadStringA, ShowWindow, GetDesktopWindow

version.dll

VerQueryValueW, GetFileVersionInfoW, GetFileVersionInfoSizeW

winhttp.dll

WinHttpGetIEProxyConfigForCurrentUser

wintrust.dll

WinVerifyTrust

c2c_service.exe

Skype Click to Call by Skype Technologies SA (Signed)

Remove c2c_service.exe

Version:	6.8.0.12323
MD5:	0c1b2e3a897397738d9f81cd3d152af0
SHA1:	bcf763b38cd0efba632c77c5e3b444e540ce3dbe
SHA256:	8de15d2ce428b8de22d21a90b6b82637a4df8b7d5134a268963c24354924e717

What is c2c_service.exe?

The Click & Call Advertising with Skype plug-in highlights Skype contacts and phone numbers on most websites. Within the web browser such as Internet Explorer, click on the number to call it with Skype. Phone numbers and Skype contacts are highlighted wherever they appear on the web.

About c2c_service.exe (from Skype Technologies SA)

“Call numbers instantly, anywhere on the web, with just one click. It’s like magic – once you install Skype Click to Call, you can call on the web with just one click. Call numbers marked 'free' at no ”

Overview

c2c_service.exe runs as a service under the name Skype C2C Service with extensive SYSTEM privileges (full administrator access). It is installed with a couple of know programs including Skype Click to Call published by Skype Technologies S.A. and Skype Click to Call published by Skype Technologies S.A.. The file is digitally signed by Skype Technologies SA which was issued by the VeriSign certificate authority (CA).

Details

File name:	c2c_service.exe
Publisher:	Skype Technologies S.A.
Product name:	Skype Click to Call
Description:	Skype C2C Service
Typical file path:	C:\ProgramData\skype\toolbars\skype c2c service\c2c_service.exe
File version:	6.8.0.12323
Size:	3.14 MB (3,289,208 bytes)
Build date:	4/15/2013 10:27 PM
Certificate
Issued to:	Skype Technologies SA
Authority (CA):	VeriSign
Digital DNA
PE subsystem:	Windows Console
File packed:	No
.NET CLR:	No

More details

Programs

The following programs will install this file

Skype Click to Call

Skype Technologies S.A.

22% remove

Behaviors

Service

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

'Skype C2C Service'

Resource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)

Averages

CPU
Total CPU:	0.02491837%	0.028634%
Kernel CPU:	0.01033391%	0.013761%
User CPU:	0.01458446%	0.014873%
Kernel CPU time:	265 ms/min	100,923,805ms/min
Memory
Private memory:	3.9 MB	21.59 MB
Private (maximum):	7.9 MB
Private (minimum):	4.89 MB
Non-paged memory:	3.9 MB	21.59 MB
Virtual memory:	52.71 MB	140.96 MB
Virtual memory (peak):	85.08 MB	169.69 MB
Working set:	4.93 MB	18.61 MB
Working set (peak):	8.33 MB	37.95 MB
Resource allocations
Threads:	8	12
Handles:	205	600

Process properties

Integrety level:	System
Platform:	32-bit
Command line:	"C:\ProgramData\skype\toolbars\skype c2c service\c2c_service.exe"
Owner:	SYSTEM
Windows Service
Service name:	Skype C2C Service
Description:	“Skype Click to Call Update Service”
Type:	Win32OwnProcess
Parent process:	services.exe (Services and Controller app by Microsoft)

Distribution by Windows OS

OS version	distribution
Windows 7 Home Premium	34.50%
Windows 7 Ultimate	31.50%
Microsoft Windows XP	8.00%
Windows 8 Pro	5.00%
Windows 7 Professional	5.00%
Windows 8 Single Language	3.00%
Windows 7 Home Basic	2.50%
Windows 8 Pro with Media Center	2.00%
Windows Vista Home Premium	1.50%
Windows 8.1	1.00%
Windows 8	1.00%
Windows 8.1 Enterprise	1.00%
Windows 8.1 Single Language	1.00%
Windows 7 Starter	1.00%
Windows 8 Enterprise	1.00%
Windows Vista Ultimate	1.00%

Distribution by country

United States installs about 31.00% of Skype Click to Call.

Distribution by PC manufacturer

PC Manufacturer	distribution
Toshiba	18.51%
Dell	14.95%
ASUS	14.95%
Hewlett-Packard	11.74%
Sony	9.96%
Acer	9.61%
Lenovo	6.41%
Intel	4.27%
GIGABYTE	1.78%
American Megatrends	1.78%
Sahara	1.42%
Medion	1.42%
NEC	1.42%
Samsung	1.07%
Packard Bell	0.71%

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