PC Pitstop Libraries > Process Library > msmpeng.exe
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Process Name

  

What is msmpeng.exe? Windows Defender

Vendor:      Microsoft Corporation
Product:     
Vendor Website:      http://onecare.live.com/standard/en-us/default.htm
Last Seen by PC Pitstop:      No Data

Process is Bad PC Pitstop has analyzed this process and determined that there is a high likelihood that it is bad.
Process is questionablePC Pitstop has analyzed this process and determined that the safety of this process is questionable.
Process is goodPC Pitstop has analyzed this process and determined that there is a high likelihood that it is good.
Process is goodThis process is a Microsoft or Windows process, but many viruses use this file name to escape notice.

PC Pitstop Analysis

Purpose: MsMpEng.exe is part of Microsoft's malware protection. Microsoft has used several names for their product including Windows Live OneCare, Windows Defender and latest being Microsoft Security Essentials.

msmpeng.exe is required by third-party software or hardware and should not disabled.

PC Pitstop recommends WinPatrol Plus for monitoring all of the background activity on your PC. WinPatrol Plus provides an easy to understand descriptions of over 15,000 processes and programs.


msmpeng.exe is known to be a bad process. Start this Free scan to check your other threats to your PCs security, like this file.
msmpeng.exe could be a harmful process. Start this Free Scan to check for threats to your PC Security.
This information brought to you by PC Matic SuperShield. Start this Free scan to check your threats to your PCs security.
msmpeng.exe is a Microsoft or Windows process but some versions of this exe carry viruses.
Check your PC for the bad versions of this file - with this
Free Security Scan.

msmpeng.exe Technical Information

Percentage of recently scanned PC's with this process running: 5.61%
Average CPU use for this program: 5%
Average RAM for this program: 51 MB

MD5 Hash Analysis

Program Name MD5 Count
msmpeng.exe

MD5 Hashes Expand md5 List Collapse md5 List
# Status MD5 File Info Last Seen Signed Day Week Month Threat info
1 Status 0xc1f19d2bacbee9ab64d9ae69e9859ac0 More File Information 6/14/2013 Signed 28 160 756 Not Applicable
2 Status 0xcc8e4f72f21340a4d3a3d4db50313ef5 More File Information 6/14/2013 Signed 2 9 39 Not Applicable
3 Status 0xe077fca2a7e79fb9bf67d3e30b5ce593 More File Information 6/14/2013 Signed 1 9 91 Not Applicable
4 Status 0xe07dec52ff801841ba9b6878a60304fb More File Information 6/14/2013 Signed 11 115 496 Not Applicable
5 Status 0xf45dd1e1365d857dd08bc23563370d0e More File Information 6/14/2013 Signed 1 8 42 Not Applicable
6 Status 0x90dc23d940551db35367fb1e40575b25 More File Information 6/14/2013 Signed 3 10 24 Not Applicable
7 Status 0x24516bf4e12a46cb67302e2cdcb8cddf More File Information 6/13/2013 Signed 0 7 27 Not Applicable
8 Status 0xcfce43b70ca0cc4dcc8adb62b792b173 More File Information 6/11/2013 Signed 0 1 1 Not Applicable
9 Status 0x2275c89d8b702c1ef05d6966139c3865 More File Information 6/9/2013 Signed 0 1 2 Not Applicable
10 Status 0x578c809bf745608646ea338a9ac48158 More File Information 6/9/2013 Signed 0 1 1 Not Applicable
11 Status 0x59faaf2c83c8169ea20f9e335e418907 More File Information 6/7/2013 Signed 0 0 1 Not Applicable
12 Status 0xe7e81c6bcd697f5921df6d6781d2673d More File Information 3/31/2013 Signed 0 0 0 Not Applicable
MD5 Hashes Expand md5 List Collapse md5 List
# Status MD5 Last Seen File Date Revision Common Name Size
1 Status 0x0d256342b3d154723676510f416a316d 6/6/2013 6:28:00 PM Unknown Unknown Windows Defender 21 KB
2 Status 0xf50137b8f060790e245c5f600c5844a8 5/26/2013 8:08:00 PM Unknown Unknown Windows Defender 20 KB
3 Status 0xc1f19d2bacbee9ab64d9ae69e9859ac0 2/12/2013 9:58:00 PM Unknown Unknown Windows Defender 19 KB
4 Status 0xad360a236fb951db405ea699fdc9f521 1/20/2013 6:57:00 PM Unknown Unknown Windows Defender 20 KB
5 Status 0xe238ab774cc0e4261295e23698b81a9c 11/29/2012 8:25:00 PM Unknown Unknown Windows Defender 19 KB
6 Status 0x36a695e1683671009c2fea38b5eb4cd4 10/31/2012 6:24:00 AM Unknown Unknown Windows Defender 13 KB
7 Status 0xaada4de00d483653a0a9c149d60096a0 9/26/2012 3:45:00 AM Unknown Unknown Windows Defender 13 KB
8 Status 0xe077fca2a7e79fb9bf67d3e30b5ce593 9/25/2012 2:29:00 PM Unknown Unknown Windows Defender 19 KB
9 Status 0xf4bfeb45546c6082920bf133b6799194 8/30/2012 9:05:00 AM Unknown Unknown Windows Defender 19 KB
10 Status 0x98de19acc703d8b06ed2c2c52f9053a0 7/16/2012 4:46:00 PM Unknown Unknown Windows Defender 11 KB
11 Status 0xdc60685b2d193e21ca34b00f684e77e8 7/7/2012 8:40:00 PM Unknown Unknown Windows Defender 19 KB
12 Status 0xe4b91e3e5ce22641ba63fc1d5e94ac90 6/11/2012 4:54:00 PM Unknown Unknown Windows Defender 11 KB
13 Status 0x1a660fbeb4383a2bb18b27ad8d719084 6/9/2012 9:27:00 AM Unknown Unknown Windows Defender 11 KB
14 Status 0x24516bf4e12a46cb67302e2cdcb8cddf 4/24/2012 4:02:00 PM Unknown Unknown Windows Defender 11 KB
15 Status 0xb15eceaf5b36c6f9c1b3930a6c3db1de 3/9/2012 9:01:00 AM Unknown Unknown Windows Defender 11 KB
16 Status 0x2bfd3e9dbb922acc6ee7811f89d99c4a 2/21/2012 3:58:00 PM Unknown Unknown Windows Defender 13 KB
17 Status 0xcfce43b70ca0cc4dcc8adb62b792b173 2/8/2012 4:09:00 AM Unknown Unknown Windows Defender 11 KB
18 Status 0x90dc23d940551db35367fb1e40575b25 2/8/2012 3:07:00 AM Unknown Unknown Windows Defender 11 KB
19 Status 0xf45dd1e1365d857dd08bc23563370d0e 2/8/2012 1:01:00 AM Unknown 1.1.1593.0 Windows Defender 13 KB
20 Status 0x724ae55ec1e78cf617e201d53c125228 2/7/2012 8:13:00 AM Unknown Unknown Windows Defender 11 KB
21 Status 0xbc82daddc6c67bf1da98e84dad577f74 2/5/2012 6:51:00 PM Unknown Unknown Windows Defender 11 KB
22 Status 0x578c809bf745608646ea338a9ac48158 2/5/2012 5:56:00 PM Unknown Unknown Windows Defender 17 KB
23 Status 0x7ffaa1d7fd1c3dbfa6f9faad986d5907 2/1/2012 2:17:00 AM Unknown Unknown Windows Defender 18 KB
24 Status 0x8cab6b589f6610bf0e20780e153248c1 1/23/2012 7:58:00 PM Unknown Unknown Windows Defender 16 KB
25 Status 0x9786f03f832b10dc1d97ef45fe125e29 1/10/2012 11:16:00 AM Unknown Unknown Windows Defender 11 KB



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Important Note

A file name alone may not be enough for positive identification. PC Pitstop's Overdrive tests and spyware scan use information such as the company name, product name, or install directory.

If you are unable to identify a file, ask about it in our forums after running our full tests.