Should I block it?

45%
45% of PCs block this file from running.
Possible reason:
Performance resource utilization

VersionsAdditional 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 processes
Related files

PE structurePE 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:   6.1.0.10441
MD5:   0f97e7a47a52f4a36969f0fc319654c2
SHA1:   ec55e305dcf5e07913b1f88690bba8f54f06ca12
SHA256:   8a9e5974de60f993bed44acaac469b146d6c91ecb8e3d14bf66e6d1634ac604e

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). This is typically installed with the program 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).

DetailsDetails

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:6.1.0.10441
Size:2.91 MB (3,048,136 bytes)
Certificate
Issued to:Skype Technologies SA
Authority (CA):VeriSign
Digital DNA
PE subsystem:Windows Console
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following program will install this file
Skype Click to Call
 Skype Technologies S.A.
22% remove
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. The software is downloaded via download.skype.com.

BehaviorsBehaviors

Service
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'Skype C2C Service'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00687494%
0.028634%
Kernel CPU:0.00349633%
0.013761%
User CPU:0.00337861%
0.014873%
Kernel CPU time:265 ms/min
100,923,805ms/min
CPU cycles:202,348/sec
17,470,203/sec
Context switches:41/sec
284/sec
Memory
Private memory:2.73 MB
21.59 MB
Private (maximum):4.9 MB
Private (minimum):4.34 MB
Non-paged memory:2.73 MB
21.59 MB
Virtual memory:52.66 MB
140.96 MB
Virtual memory (peak):66.98 MB
169.69 MB
Working set:4.39 MB
18.61 MB
Working set (peak):6.38 MB
37.95 MB
Page faults:11,946/min
2,039/min
I/O
I/O read transfer:0 Bytes/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O write transfer:0 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:6 Bytes/sec
448.09 KB/min
I/O other operations:1/sec
1,671/min
Resource allocations
Threads:5
12
Handles:109
600
GUI GDI count:4
103
GUI USER count:1
49

BehaviorsProcess properties

Integrety level:System
Platform:32-bit
Command lines:
  • "C:\ProgramData\skype\toolbars\skype c2c service\c2c_service.exe"
  • "C:\Documents and Settings\user\Application data\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)

Windows OS versionsDistribution by Windows OS

OS versiondistribution
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 countryDistribution by country

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

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
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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