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Running, Malicious, Unwanted, Memory Hogs

Welcome to the PC Matic Process Library. We maintain an extensive list of common processes running on today’s PCs. Within this library you can learn more about the processes running on your machine.

Process Library Detail

What is lsass.exe? Local Security Authority?

Vendor:      Microsoft
Product:     Windows
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.

Purpose: lsass.exe provides security functions in Windows 2000/XP. Leave it running, is very important for windows.

lsass.exe is an essential part of Windows and required for Windows to work properly. It should never be disabled.


lsass.exe is known to be a bad process. Learn more about protecting your PC from these bad processes with PC Matic.
lsass.exe could be a harmful process. Learn more about protecging your PC from these potential harmful processes with PC Matic.
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.
lsass.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.

Percentage of recently scanned PC's with this process running: 24.02%
Average CPU use for this program: 0%
Average RAM for this program: 3 MB


Program Name MD5 Count
lsass.exe

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0x747ed861374e5589ee56d28e01bdcfe1 12/31/2017 10:32:00 PM Unknown Unknown Local Security Authority 23 KB
2 Status 0x3c9f668112aae22401bc4aff90bd6782 12/30/2016 1:58:00 AM Unknown Unknown Local Security Authority 13 KB
3 Status 0x70885577298b92939f3b7af54d5f8943 11/20/2016 9:42:00 AM Unknown 5.1.2600.3311 (xpsp.080212-0010) Local Security Authority 13 KB
4 Status 0x81951f51e318aecc2d68559e47485cc4 10/27/2016 3:23:00 PM Unknown Unknown Local Security Authority 22 KB
5 Status 0xabe0d5760dafd55390057378cda68bd8 7/22/2016 12:46:00 PM Unknown Unknown Local Security Authority 13 KB
6 Status 0x3228be5229f9eefb18654a56b016f642 4/30/2015 12:30:00 PM Unknown Unknown Local Security Authority 22 KB
7 Status 0x21844f6da13ece4737d0b7524edeb6ec 4/15/2015 12:47:00 PM Unknown Unknown Local Security Authority 13 KB
8 Status 0xf65f365ac0d1657917efdb52445c848b 4/14/2015 2:55:00 AM Unknown Unknown Local Security Authority 22 KB
9 Status 0xe4b556449b263674e741bd10108498c8 4/4/2015 5:32:00 AM Unknown 5.1.2600.3300 (xpsp.080125-2034) Local Security Authority 13 KB
10 Status 0x809c3dfadc08d0eb15e5440f2a65434c 3/10/2015 3:42:00 AM Unknown Unknown Local Security Authority 13 KB
11 Status 0x8a590ea109b5e0c7629e022f8a6b17c5 2/28/2015 1:08:00 AM Unknown 5.1.2600.0 (xpclient.010817-1148) Local Security Authority 11 KB
12 Status 0x534d60486885550759f6123228dec5ca 2/5/2015 9:02:00 PM Unknown Unknown Local Security Authority 13 KB
13 Status 0x9f3744a5c6f49291a7a685040a013399 2/5/2015 3:48:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) Local Security Authority 13 KB
14 Status 0xdccfd56386f10658711415c7c2dda2f6 1/21/2015 2:54:00 PM Unknown Unknown Local Security Authority 16 KB
15 Status 0xc731b1fe449d4e9cea358c9d55b69be9 1/15/2015 12:38:00 AM Unknown Unknown Local Security Authority 7 KB
16 Status 0x559c7769b397f07e12725ee55337d4c6 1/14/2015 10:53:00 PM Unknown Unknown Local Security Authority 21 KB
17 Status 0x259af82a0932eea4f316f92db94707b6 1/12/2015 6:12:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) Local Security Authority 13 KB
18 Status 0x543b4545600f5b26150ff3f639aa670a 1/2/2015 3:35:00 PM Unknown 5.1.2600.5503 (xpsp.080306-1609) Local Security Authority 13 KB
19 Status 0xdcf733788c7d088d814e5f80eb4b3e0f 1/1/2015 1:09:00 AM Unknown 6.0.6000.16386 (vista_rtm.061101-2205) Local Security Authority 9 KB
20 Status 0x3978f3540329e16c0ac3bcf677e5669f 12/1/2014 10:03:00 PM Unknown Unknown Local Security Authority 9 KB
21 Status 0x8b383cbc02e86c35a9669e1e6e21d0e0 10/25/2014 11:24:00 AM Unknown Unknown Local Security Authority 13 KB
22 Status 0x34a82debefb057fcccbe15f619fc98a7 9/16/2014 6:07:00 PM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) Local Security Authority 13 KB
23 Status 0x0c13d582edaf90cbea454a1ac535b913 9/6/2014 2:48:00 AM Unknown 5.00.2195.6902 Local Security Authority 32 KB
24 Status 0xc4523583ccc32df9221015c36c34527a 9/1/2014 12:57:00 PM Unknown Unknown Local Security Authority 13 KB
25 Status 0x9086126fb5fd15ceb387121506400244 8/30/2014 4:56:00 AM Unknown 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) Local Security Authority 13 KB

MD5 Hashes

# Status MD5 Revision Name Size
1 Status 0x7423f209d265a87aa6b307440b7c26c7 12/28/2014 3:25:00 AM Unknown Unknown Possible Virus ** Read ** 228 KB
2 Status 0x7cbd8d3b6fa35179bb2f42643526d9ab 12/7/2012 1:10:00 AM Unknown Unknown Possible Virus ** Read ** 368 KB
3 Status 0x9df3dd6f068eec01a2ab829100e60c8f 11/8/2012 1:50:00 PM Unknown Unknown Possible Virus ** Read ** 256 KB
4 Status 0xf536047a1fb17b7a962f0ae91cb8f838 6/11/2012 12:42:00 AM Unknown Unknown Possible Virus ** Read ** 208 KB
5 Status 0x8d4dca33b50b4f4d5b3527e02df75d3c 5/17/2012 11:32:00 AM Unknown Unknown Possible Virus ** Read ** 252 KB
6 Status 0x0f6a0b74b7c3d1d5d5d8efa063e181c8 2/4/2012 9:36:00 PM Unknown Unknown Possible Virus ** Read ** 51 KB
7 Status 0x2f7cef1a0953f9624ddff13c1425ac37 4/14/2011 1:09:00 PM Unknown Unknown Possible Virus ** Read ** 223 KB
8 Status 0x9f7519c486c3b1721d9d209645bb708f 2/23/2011 4:37:00 AM Unknown Unknown Possible Virus ** Read ** 94 KB
9 Status 0xaf89481fd6ded35fa15535bb27ba9582 12/8/2010 1:41:00 PM Unknown Unknown Possible Virus ** Read ** 256 KB
10 Status 0xa0c8b3c28f751cc4335f11e0598276de 11/30/2010 12:53:00 PM Unknown Unknown Possible Virus ** Read ** 29 KB
11 Status 0x5ab72d1524268c8a5cd5068da7097772 10/3/2010 12:47:00 AM Unknown Unknown Possible Virus ** Read ** 256 KB
12 Status 0x335cef0a1f9fc2d50f58e2485ece8374 6/5/2010 1:17:00 AM Unknown Unknown Possible Virus ** Read ** 236 KB
13 Status 0x4eac761a3995e8a1e0668fcbc75217df 5/25/2010 3:28:00 PM Unknown Unknown Possible Virus ** Read ** 256 KB
14 Status 0xc87f83bcea15c119fecab5e06ace621f 5/20/2010 10:23:00 AM Unknown Unknown Possible Virus ** Read ** 256 KB
15 Status 0xbbecec47060caca894ef9158ba7d4c1d 5/8/2010 3:57:00 PM Unknown Unknown Possible Virus ** Read ** 256 KB
16 Status 0x861d8a8cf7a46171303932eabbc77bfb 5/1/2010 7:43:00 AM Unknown Unknown Possible Virus ** Read ** 228 KB
17 Status 0x43917a937c6a8ddb9cb2833d53c2be20 4/26/2010 7:47:00 AM Unknown Unknown Possible Virus ** Read ** 284 KB
18 Status 0x606d40f4cf2906e6d9d558119199c27c 4/26/2010 4:17:00 AM Unknown Unknown Possible Virus ** Read ** 256 KB
19 Status 0xcbee96d69df1f8760db014abfc3ae23a 4/10/2010 6:35:00 AM Unknown Unknown Possible Virus ** Read ** 108 KB
20 Status 0x69b7856f4e9959fd28cd7ee5623bf484 3/30/2010 5:14:00 PM Unknown Unknown Possible Virus ** Read ** 105 KB
21 Status 0xbc2dc6b7be79bad747b0de3f51d4e677 3/30/2010 3:13:00 PM Unknown Unknown Possible Virus ** Read ** 256 KB
22 Status 0xc3cc4323e32594f868d5573b5bc74c10 3/19/2010 11:51:00 PM Unknown Unknown Possible Virus ** Read ** 228 KB
23 Status 0x8eab45cc68be3629d05b91ed0b1543bd 3/13/2010 3:53:00 PM Unknown Unknown Possible Virus ** Read ** 228 KB
24 Status 0xf28ff32f4cb00f941644a1e0fd8c751f 3/12/2010 9:36:00 PM Unknown Unknown Possible Virus ** Read ** 704 KB
25 Status 0x28f50b89d95a77311800000f1988a6de 3/4/2010 3:13:00 PM Unknown Unknown Possible Virus ** Read ** 816 KB


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