lsass.exe Windows process description
Windows 7, Windows XP or Windows Vista software, task, program or application with exename lsass.exe
Specific issues and troubleshooting:
- Is lsass.exe virus or not? And how you can recognize it.
- Solve problems with lsass.exe error.
- A little bit more specific lsass.exe application error.
- Removal guide: How to remove lsass.exe.
- Solve problems with lsass.exe not responding.
- Windows performance problems: lsass.exe high cpu.
- File damaged: lsass.exe corrupted.
What is lsass.exe - purpose and description:
lsass.exe is a system process of the Microsoft Windows security mechanisms - the Local Security Authentication Server. It verifies the validity of user logons to your PC or Server. It generates the process responsible for authenticating users for the Winlogon service. This program is important for the stable and secure running of your computer and should not be terminated.
Note: This process name is also reported as a virus or trojan (Kazaa, Nimos, Sasser, Lowgate).
In this case, the running process is a security risk and should be removed immediately.
Ports opened by this process:
This process opens 6 ports. See details of ports opened by lsass.exe
Security risk rating: N/A
Trojan and malware info: N/A*
Typical errors:
File not found, An error occurred in file, Not responding, Application Error 0x, Howto delete, stop, run, remove and find the file.
Note: N/A means "Not available". That means that now we have no information if this process is harmful or not.
Operating system distribution
lsass.exe was seen on this operating systems:
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Latest user reviews
Summary: 1 user(s) rated this process.
Average security risk: Very low

Disclaimer: this user reviews are provided "as is" without any warranty. Reviews are uncensored opinions submitted by our users. We are not responsible for the content of these User Reviews.
User (IP) | Security risk |
98.66.185.* | Very low |
essential part of the windows os |
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lsass.exe version list:
The name lsass.exe can be used by many programs from different vendors. Also, the same vendor can create lsass.exe in more than one version. Thus, we distinguish between all such variants by so called "checksum". Checksum is unique number identifying particular version of lsass.exe:
Checksum (MD5) | Version | Size (bytes) | Manufacturer |
---|---|---|---|
A72F445A | 5.1.2600.2180 | 13312 | |
70378041 | 5.1.2600.2180 | 13312 |
- Unknown - |
2994FAFE | 5.1.2600.1106 | 11776 |
- Unknown - |
68DB4F5D | 5.1.2600.2180 | 13312 |
- Unknown - |
D4343783 | 5.1.2600.0 | 11776 |
- Unknown - |
8BDD0780 | 5.1.2600.0 | 11776 |
- Unknown - |
5945090 | 5.1.2600.2180 | 13312 | |
7F41B1D7 | 5.1.2600.2180 | 13312 |
- Unknown - |
E10D9EAB | 5.1.2600.2180 | 13312 |
- Unknown - |
5F46BC9D | 5.1.2600.2180 | 13312 |
- Unknown - |
BE43F45C | 5.1.2600.2180 | 13312 |
- Unknown - |
236710EF | 5.1.2600.2180 | 13312 |
- Unknown - |
8CAE6E28 | 5.1.2600.1106 | 11776 |
- Unknown - |
7EAD84E8 | 5.1.2600.1106 | 11776 |
- Unknown - |
B83FD955 | 5.1.2600.0 | 11776 |
- Unknown - |
AC258ABC | 5.00.2195.6695 | 39184 |
- Unknown - |
732001B | 5.00.2195.7011 | 33552 |
- Unknown - |
5ED9D4A | 5.1.2600.0 | 11776 |
- Unknown - |
- Unknown - |
|||
1BE99B23 | 5.00.2195.6902 | 33552 |
- Unknown - |
70CBDC7A | 5.00.2195.7011 | 39184 |
- Unknown - |
BA4D16D3 | 5.00.2195.2964 | 33552 |
- Unknown - |
BF785E02 | 5.1.2600.2096 | 13312 |
- Unknown - |
B319DFB9 | 5.1.2600.0 | 11776 |
- Unknown - |
BA0B192B | 5.1.2600.0 | 11776 |
- Unknown - |
66C8CD4A | 5.1.2600.2180 | 13312 |
- Unknown - |
9A2D9B32 | 5.1.2600.2180 | 13312 |
- Unknown - |
34C77126 | 5.1.2600.2180 | 13312 |
- Unknown - |
5222EAA4 | 5.00.2195.6902 | 38160 |
- Unknown - |
C405D9BC | 5.1.2600.2180 | 13312 |
- Unknown - |
46681371 | 5.1.2600.2180 | 13312 |
- Unknown - |
B383FEAE | 5.00.2195.7011 | 33552 |
- Unknown - |
AC08C36F | 5.1.2600.1106 | 11776 |
- Unknown - |
3E129DB9 | 5.1.2600.2180 | 13312 |
- Unknown - |
A3A45D6F | 5.1.2600.2180 | 13312 |
- Unknown - |
91508EA2 | 5.1.2600.1106 | 11776 |
- Unknown - |
21561DC4 | 5.1.2600.0 | 11776 |
- Unknown - |
1E671930 | 5.1.2600.2180 | 13312 |
- Unknown - |
30129219 | 5.1.2600.1106 | 11776 |
- Unknown - |
15AD8327 | 5.00.2195.6695 | 35088 |
- Unknown - |
45880DBE | 5.00.2195.7011 | 38160 |
- Unknown - |
2831A7C | 5.1.2600.2180 | 13312 |
- Unknown - |
947B624B | 5.1.2600.1106 | 11776 |
- Unknown - |
EB227748 | 5.1.2600.2180 | 13312 |
- Unknown - |
F91E836F | 5.1.2600.1081 | 11776 |
- Unknown - |
8E100EA9 | 5.1.2600.2180 | 13312 |
- Unknown - |
A7533415 | 5.1.2600.1106 | 11776 |
- Unknown - |
FE4472B6 | 5.00.2195.5430 | 38160 |
- Unknown - |
88A791D1 | 5.1.2600.2180 | 13312 |
- Unknown - |
EC5DB1F1 | 5.1.2600.1106 | 11776 |
- Unknown - |
732854DC | 5.00.2195.6695 | 33552 |
- Unknown - |
2E585FE0 | 5.1.2600.2180 | 13312 |
- Unknown - |
43234D78 | 5.00.2195.7011 | 36112 |
- Unknown - |
F6F4081 | 5.1.2600.2180 | 13312 |
- Unknown - |
8DF109C2 | 5.1.2600.2180 | 13312 |
- Unknown - |
594C29C7 | 5.1.2600.0 | 11776 |
- Unknown - |
1A7A9572 | 5.00.2195.6902 | 36112 |
- Unknown - |
29F4016 | 5.00.2195.7011 | 35088 |
- Unknown - |
94DA3D95 | 5.00.2184.1 | 39184 |
- Unknown - |
20D6072F | 5.00.2195.6902 | 37648 |
- Unknown - |
398215E3 | 5.1.2600.2180 | 13312 |
- Unknown - |
FF3BA246 | 5.00.2195.7011 | 39184 |
- Unknown - |
8E3FE8FF | 5.1.2600.0 | 11776 |
- Unknown - |
4FD51912 | 5.1.2600.0 | 11776 |
- Unknown - |
9BA38AC3 | 5.1.2600.2180 | 13312 |
- Unknown - |
D71EF30B | 5.1.2600.0 | 11776 |
- Unknown - |
FF569A4E | 5.1.2600.2180 | 13312 |
- Unknown - |
85242943 | 5.1.2600.2180 | 13312 |
- Unknown - |
194BA715 | 5.2.3790.0 | 13312 |
- Unknown - |
1A4243C0 | 5.2.3790.0 | 16384 |
- Unknown - |
4D3BC3D6 | 5.1.2600.2180 | 13312 |
- Unknown - |
2684BC98 | 5.1.2600.1106 | 11776 |
- Unknown - |
8616E98F | 5.1.2600.1106 | 11776 |
- Unknown - |
9384CEC8 | 5.00.2195.6695 | 38160 |
- Unknown - |
915F344F | 5.1.2600.2180 | 13312 |
- Unknown - |
E968D337 | 5.1.2600.0 | 11776 |
- Unknown - |
F58B1ED7 | 6.0.6000.16386 | 7680 |
- Unknown - |
153881A0 | 5.00.2195.6695 | 33552 |
- Unknown - |
E29B9E00 | 5.1.2600.0 | 11776 |
- Unknown - |
AC8016C2 | 5.1.2600.2180 | 13312 |
- Unknown - |
11B2E25B | 5.1.2600.0 | 11776 |
- Unknown - |
BB66E749 | 5.1.2600.0 | 11776 |
- Unknown - |
98D00EDD | 5.1.2600.1106 | 11776 |
- Unknown - |
E398DF6D | 5.2.3790.0 | 16384 |
- Unknown - |
BB2FC9B3 | 5.00.2184.1 | 33552 |
- Unknown - |
FDB05400 | 5.00.2195.6695 | 33552 |
- Unknown - |
58193FCB | 5.1.2600.0 | 11776 |
- Unknown - |
FFBB5F78 | 5.1.2600.2180 | 13312 |
- Unknown - |
52240B1A | 42713 |
- Unknown - |
|
FB62B909 | 5.00.2195.1620 | 33552 |
- Unknown - |
B1A7DA6C | 6.0.6000.16386 | 7680 |
- Unknown - |
943D58B0 | |||
42DC09D3 | |||
DD39D0EF |
- Unknown - |
||
B1674B46 | |||
521C5496 |
- Unknown - |
||
50B74EC4 |
- Unknown - |
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5B45B59C |
- Unknown - |
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AE7078E7 |
- Unknown - |
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14D8858E |
- Unknown - |
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A8E7AE3C |
- Unknown - |
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B3FD033B |
- Unknown - |
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ED6AC52 |
- Unknown - |
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7A11FA52 |
- Unknown - |
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2BDD4D7E |
- Unknown - |
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F6EC7230 |
- Unknown - |
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16EB66A7 |
- Unknown - |
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E6FAB19A |
- Unknown - |
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974841BE |
- Unknown - |
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DF6663CB |
- Unknown - |
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DDA599EF |
- Unknown - |
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877C964D |
- Unknown - |
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16C5D894 | |||
23496AEC |
- Unknown - |
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ECEAD7CE |
- Unknown - |
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50B6071A |
- Unknown - |
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5B0B3C80 |
- Unknown - |
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6C429E0C |
- Unknown - |
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CA317E9A |
- Unknown - |
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43A74A4C |
- Unknown - |
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67B8FBA8 |
- Unknown - |
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8FBD55ED |
- Unknown - |
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38DDEAF |
- Unknown - |
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599576C6 | |||
2ce6b38b | |||
4898b67d |
- Unknown - |
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37ee9742 | |||
163014b4 |
- Unknown - |
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9384620a |
- Unknown - |
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1332e628 |
- Unknown - |
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1692d1cf | |||
d0b6cfa8 | |||
d733b6b8 |
- Unknown - |
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72bfff4e |
- Unknown - |
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26f13d7c |
- Unknown - |
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94fb618b | 6.1.7600.16915 | ||
c725f64f |
- Unknown - |
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ff76bca2 |
- Unknown - |
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87d5ff50 | 6.1.7601.18270 | ||
601e8480 | 6.1.7601.18270 | ||
3b7a7c53 | 6.1.7601.18443 | ||
8f370675 | 6.1.7601.18719 | ||
eecb06d3 | 6.1.7601.18779 | ||
6b015b66 | 6.1.7601.18798 | ||
e4490083 | 6.1.7601.18839 | ||
6e6a19c2 | 6.1.7601.18869 | ||
4a7606e7 | 6.1.7601.18912 | ||
5d0a2112 | 6.1.7601.18933 | ||
410914b4 | 6.1.7601.18939 | ||
cfe44be5 | 6.1.7601.18951 | ||
f2219f2c | 10.0.10240.16384 | ||
ffde40a3 | 6.1.7601.19007 | ||
deca3132 | 6.1.7601.19045 | ||
4b0d9820 | 6.1.7601.19110 | ||
4f1f2717 | 6.1.7601.19135 | ||
9e2b63bc | 6.1.7601.19160 | ||
56ba059f | 6.1.7601.23392 | ||
f6934a51 | 10.0.10586.0 | ||
b2a1a546 | 6.1.7601.23418 | ||
581130dc | 6.1.7601.23419 | ||
b0bd59e7 | 6.1.7601.23452 | ||
64203ad4 | 6.1.7601.23497 | ||
cec7a4c8 | 6.1.7601.23539 | ||
3fa8ed19 | 6.1.7601.23545 | ||
6cdf043c | 6.1.7601.23571 | ||
c6af7b86 | 6.1.7601.23572 | ||
eb645f24 | 6.1.7601.23601 | ||
2724580d | 6.1.7601.23642 | ||
0793f40b9b8a1bdd266296409dbd91ea | 6.1.7600.16385 | 31232 |
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