Adding new Sigma references (AppInstaller, AspnetCompiler, Bash, Certreq) (#183)

yml/OSBinaries/AppInstaller.yml

@@ -14,6 +14,7 @@ Commands:
 Full_Path:
   - Path: C:\Program Files\WindowsApps\Microsoft.DesktopAppInstaller_1.11.2521.0_x64__8wekyb3d8bbwe\AppInstaller.exe
 Detection:
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/bdb00f403fd8ede0daa04449ad913200af9466ff/rules/windows/dns_query/win_dq_lobas_appinstaller.yml
 Resources:
   - Link: https://twitter.com/notwhickey/status/1333900137232523264
 Acknowledgement:

yml/OSBinaries/Aspnet_Compiler.yml

@@ -18,6 +18,7 @@ Code_Sample:
   - Code: https://github.com/ThunderGunExpress/BringYourOwnBuilder
 Detection:
   - BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/960a03eaf480926ed8db464477335a713e9e6630/rules/windows/process_creation/win_pc_lobas_aspnet_compiler.yml
 Resources:
   - Link: https://ijustwannared.team/2020/08/01/the-curious-case-of-aspnet_compiler-exe/
   - Link: https://docs.microsoft.com/en-us/dotnet/api/system.web.compilation.buildprovider.generatecode?view=netframework-4.8

yml/OSBinaries/Bash.yml

@@ -39,6 +39,7 @@ Code_Sample:
   - Code:
 Detection:
   - BlockRule: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/960a03eaf480926ed8db464477335a713e9e6630/rules/windows/process_creation/win_pc_lobas_bash.yml
   - IOC: Child process from bash.exe
 Resources:
   - Link: https://docs.microsoft.com/en-us/windows/security/threat-protection/windows-defender-application-control/microsoft-recommended-block-rules

yml/OSBinaries/Certreq.yml

@@ -24,6 +24,7 @@ Full_Path:
 Code_Sample:
   - Code:
 Detection:
+  - Sigma: https://github.com/SigmaHQ/sigma/blob/eb8c9c046b86e7d412bdcc3235693fa1c00f70d6/rules/windows/process_creation/win_susp_certreq_download.yml
   - IOC: certreq creates new files
   - IOC: certreq makes POST requests
 Resources: