fsquirt.exe
Program on Windows 10 known copies with hashes 2 Sigma rules name it
Is it the real fsquirt.exe?
C:\Windows\system32\C:\Windows\SysWOW64\10 known copies
10.0.22000.1 (WinBuild.160101.0800) · C:\WINDOWS\SysWOW64\fsquirt.exe · signed by Microsoft Windows
41d6558a505079c1a3a9ee868358894079d20856dcfad21a0e0d9ed2c6cf9c0f10.0.22000.1 (WinBuild.160101.0800) · C:\WINDOWS\system32\fsquirt.exe · signed by Microsoft Windows
9ed4e18f5114c03229035d6f4d03250425476aa8e7dd2271d689add5cd7af9b910.0.19041.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\fsquirt.exe · signed by Microsoft Windows
323d09a48b982f2e880f4bc529f6756bbe53cb59ced8deabbf3705cd5de935e210.0.19041.1 (WinBuild.160101.0800) · C:\Windows\system32\fsquirt.exe · signed by Microsoft Windows
b088a402467d54206254050a5d754f8b6313a670b350de8f28cab416095c894f10.0.18362.1 (WinBuild.160101.0800) · C:\WINDOWS\system32\fsquirt.exe · signed by Microsoft Windows
44bab285f7ccdbebacd13ba2b6c007e11186ba6579519dd4eb6811d7a6bcf19810.0.18362.1 (WinBuild.160101.0800) · C:\WINDOWS\SysWOW64\fsquirt.exe · signed by Microsoft Windows
4b1063bb7acec424addae50ab159249122d00435dec779ae4cef5c7c583c879010.0.17763.1 (WinBuild.160101.0800) · C:\Windows\system32\fsquirt.exe · signed by Microsoft Windows
6224e08c0d005dcafa87763eda77cd85e851703e49527fb26713b4eb895502b510.0.17763.1 (WinBuild.160101.0800) · C:\Windows\SysWOW64\fsquirt.exe · signed by Microsoft Windows
e1491b1f6921849fcde3bc4b5cbb5d07890a997ed18f0051abba3407b8c0f39b10.0.14393.0 (rs1_release.160715-1616) · C:\Windows\SysWOW64\fsquirt.exe · signed by Microsoft Windows
cf339aefd05ff0db32a6bb76a5e7fe7d6b58d1cabe10b67c2cfb7c2f76552abf10.0.14393.0 (rs1_release.160715-1616) · C:\Windows\system32\fsquirt.exe · signed by Microsoft Windows
e967007da2930d50deeaf7ca9595485701b11ee9aad31cc9c4a3116791055bd6From 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 fsquirt.exe in 2 rules in all, for every kind of event; this is the process creation rule CmdID evaluates.