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Process Library Detail

What is csrss.exe? Client Server Runtime Server Subsystem?

Vendor:      Microsoft Corporation
Product:     Microsoft
Vendor Website:     
Last Seen by PC Matic:      No Data
Process is Bad PC Matic has analyzed this process and determined that there is a high likelihood that it is bad.
Process is questionablePC Matic has analyzed this process and determined that the safety of this process is questionable.
Process is goodPC Matic 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 Matic Analysis

Purpose: csrss.exe - Client Server Runtime Server Subsystem. It is responsible for console program, threads managing and supporting for 16-bit virtual MS-DOS environment.

Attention with the Vendor, Product match and Path. If it's not the same it migh be a virus.

If you have problems with csrss.exe you may want take a look in these links:

http://support.microsoft.com/kb/934330
http://support.microsoft.com/kb/555021

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


csrss.exe is known to be a bad process. Learn more about protecting your PC from these bad processes with PC Matic.
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csrss.exe could be a harmful process. Learn more about protecging your PC from these potential harmful processes with PC Matic.
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This information brought to you by PC Matic. PC Matic's real-time protection, Super Shield, blocks ALL bad and unknown threats to keep your PC secure.
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csrss.exe is a Microsoft or Windows process but some versions of this exe carry viruses.
Learn more about protecting yourself from bad versions of this file with PC Matic.
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csrss.exe Technical Information

Percentage of recently scanned PC's with this process running: 1.70%
Average CPU use for this program: 0%
Average RAM for this program: 4 MB

MD5 Hash Analysis

Program Name MD5 Count
csrss.exe

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0x44f275c64738ea2056e3d9580c23b60f 5/8/2021 7:27:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
2 Status 0x342271f6142e7c70805b8a81e1ba5f5c 6/5/2018 4:39:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
3 Status 0x485f449f57b0f8d306db884fc2f7ad45 6/5/2017 10:55:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
4 Status 0xabca209eba02cb59233614db83b4f50d 8/24/2016 7:33:00 PM Unknown 6.0.6000.16386 (vista_rtm.061101-2205) Client Server Runtime Server Subsystem 6 KB
5 Status 0xcdacc26997a7a38f7806697fdce8d83d 8/2/2016 6:58:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
6 Status 0xf12b178b1678d778cfd3ff1fc38c71fb 3/7/2015 8:45:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
7 Status 0x3a161036d0a071f3d66e11ed1908a2c5 1/29/2015 10:55:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
8 Status 0x117b7c8a8b026a5dce5e3180ed05e823 1/15/2015 12:38:00 AM Unknown 6.0.6000.16386 (vista_rtm.061101-2205) Client Server Runtime Server Subsystem 7 KB
9 Status 0x70f32a8a74e60dfe6de22218a0d43b3e 12/25/2014 3:40:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
10 Status 0x7a2dff483095773cc201420fad11862f 12/21/2014 5:39:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
11 Status 0x9b22aae3566aefee33ce498dbe0d2fd2 11/16/2014 4:43:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
12 Status 0x56332b8fb030700e276e0ea5314b1ba6 11/14/2014 10:47:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
13 Status 0x4d197477b7c40cbd4137142af1dbdee7 11/11/2014 6:13:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
14 Status 0xe0e8a531cfce1c2e5d79f683282c10c3 10/26/2014 11:36:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
15 Status 0x7378d0ab67b54396ca0fb623a5aaac94 10/19/2014 8:31:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
16 Status 0xfe6e7d743253edc394190136a672e406 10/18/2014 11:42:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
17 Status 0xf4dfceee84a86a6c593077f44bb18155 10/10/2014 11:03:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
18 Status 0xc8fea6e2e509545eb2f7a120c7ebcd06 10/7/2014 7:43:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
19 Status 0xb82cd0ad8b605f64ead6c46d70a2c993 10/6/2014 4:29:00 PM Unknown Unknown Client Server Runtime Server Subsystem 4 KB
20 Status 0x6edca12f58a4513637af2debb1629bc8 10/3/2014 8:16:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
21 Status 0x35871f07ca86ab481b9da57cf5751c08 9/1/2014 12:57:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
22 Status 0xa6c337180805bbf9678bf7ff0ba6d2af 1/31/2012 9:35:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
23 Status 0xfb4d840d43f1273777276ec6302219e2 1/24/2012 1:17:00 AM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
24 Status 0xa503973fb26bc316bbb4b834e79b609f 9/16/2011 11:00:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB
25 Status 0x73c067420713ecddb5f964f7592fd2c1 8/9/2011 2:22:00 PM Unknown Unknown Client Server Runtime Server Subsystem 6 KB

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0xa1e993d8aa42fd8de3013b5160843e87 9/11/2015 8:01:00 PM Unknown Unknown Agobot virus 256 KB
2 Status 0xdadb62781676f69cc258893669038113 4/15/2015 1:22:00 PM Unknown WinLogon trojan 41 KB
3 Status 0x59eade85c22c19814ea330467bd2a8c7 11/8/2014 8:47:00 PM Unknown Unknown Agobot virus 6 KB
4 Status 0xba31c56edc1483fe0fe86d9b8da3cd4b 6/5/2013 2:59:00 AM Unknown Unknown Agobot virus 167 KB
5 Status 0xad8b8a274a3b13adf517fce3ed5cc9a2 4/23/2013 1:52:00 PM Unknown Unknown Agobot virus 68 KB
6 Status 0x7307b16b282377e1a67009122f1afab4 12/1/2012 10:53:00 AM Unknown Unknown Agobot virus 116 KB
7 Status 0x08d738f499ff352291357018eb74166a 10/7/2012 9:40:00 PM Unknown Unknown Agobot virus 184 KB
8 Status 0x17311dad0e4c882ec938183a15c57fb1 6/13/2012 1:51:00 PM Unknown Unknown Agobot virus 1053 KB
9 Status 0x7358bd6be8d970ae7f841ea427c13458 2/3/2012 9:22:00 PM Unknown Unknown Agobot virus 248 KB
10 Status 0xa8aa99249eb28c5d4d30ef178c64b5b0 10/25/2011 9:03:00 PM Unknown Unknown Agobot virus 182 KB
11 Status 0x2056762bc8c58b2ebffd7298f3c4552a 9/28/2011 6:32:00 PM Unknown Unknown Agobot virus 184 KB
12 Status 0x23bd1908db98c652ce914d52865bbb7b 9/22/2011 11:21:00 AM Unknown Unknown Agobot virus 186 KB
13 Status 0x54e4263508f8713db883afbd0aecb598 9/19/2011 7:32:00 PM Unknown Unknown Agobot virus 183 KB
14 Status 0xae6db737980882eb66531c2fa8839ed9 9/9/2011 4:57:00 AM Unknown Unknown Agobot virus 46 KB
15 Status 0x1a3f23e77e6a197729892a796e223302 9/9/2011 4:57:00 AM Unknown Unknown Agobot virus 46 KB
16 Status 0xad782bd07f587e341d45c52cadc92f73 9/7/2011 4:22:00 PM Unknown Unknown Agobot virus 185 KB
17 Status 0x55dfcff3c4d8d42d0e90d291ccf5cc7f 9/1/2011 2:00:00 AM Unknown Unknown Agobot virus 194 KB
18 Status 0xe756c534b714deead88520b323b7188b 8/26/2011 7:00:00 PM Unknown Unknown Agobot virus 195 KB
19 Status 0x49317c0cec38d9c5fd0edb8630c61db4 8/26/2011 6:28:00 PM Unknown Unknown Agobot virus 195 KB
20 Status 0x895d6849b841c324ddcf429cefc7dd55 8/25/2011 6:18:00 PM Unknown Unknown Agobot virus 195 KB
21 Status 0xb9a9630b15d87e042ea27bff2a7c6768 8/21/2011 11:38:00 PM Unknown Unknown Agobot virus 39 KB
22 Status 0x9cd390037fcb48e09ac625310e50e36d 8/21/2011 11:38:00 PM Unknown Unknown Agobot virus 39 KB
23 Status 0xe32632c8b4961352187c8815a8183729 8/21/2011 5:41:00 PM Unknown Unknown Agobot virus 194 KB
24 Status 0x3217edc07599f749c7135c405ebf12fe 8/20/2011 1:03:00 AM Unknown Unknown Agobot virus 205 KB
25 Status 0x4d2f7ea9941629f386708eb923eefea8 8/20/2011 12:52:00 AM Unknown Unknown Agobot virus 194 KB


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