lsass.exe
Local Security Authority Process file version info
Program on Windows 10 known copies with hashes 41 Sigma rules name it
Is it the real lsass.exe?
C:\Windows\system32\10 known copies
10.0.22000.282 (WinBuild.160101.0800) · C:\WINDOWS\system32\lsass.exe · signed by Microsoft Windows
c32f4526ab20443b20ae7b8219d522bcf6193d942b176a193929638abb0f2da610.0.19041.662 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
7fe327ae2dd924e2318796508b6cff5fd6b70a3deb30a2b7c7403abdbd80546210.0.19041.546 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
56e91451fead9946aca8e2f0aae99fdea302fd90f0708f68013bddedab580f3b10.0.19041.488 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
c41f0eca09cbcec776e807522c048a9e7a2d92cc3b4eccde2f8f6c42536ad09410.0.19041.1266 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
b77aa726acd44c7c89d32dd46aa07583b88fbe2c34aed394eb6e005824e4089310.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
d70219dbe8cda2f93972ea4574aa47e57b61480ef31c69510a8faf681b0bff4610.0.18362.1 (WinBuild.160101.0800) · C:\WINDOWS\system32\lsass.exe · signed by Microsoft Windows
aa52b2d3dd4b9b47ff4496c0460bdedda791354018cf0782b899ef28acee8d2110.0.17763.1 (WinBuild.160101.0800) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
bbc83e4759d4b82bad31e371ad679aa414c72273bf97cee5aed8337ed8a4d79f10.0.14393.2580 (rs1_release_inmarket.181009-1745) · C:\Windows\system32\lsass.exe · signed by Microsoft Windows
d957a03c6ea35cbf0c90b0b088df07e7803a1a3eeb4ba889038f88db066bbdc46.3.9600.17415 (winblue_r4.141028-1500) · C:\windows\system32\lsass.exe · signed by Microsoft Windows Publisher
9c7229f10f11d18e1fed6395391a46225a84b421034b9ab6f81af7430fdc556fFrom the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.
What detects it
Sigma names lsass.exe in 41 rules in all, for every kind of event; these are the process creation rules CmdID evaluates.