Tag Archives: psexec

Error 1612 / 1621 : No application is associated with the specified file for this operation. Please make sure that C:\Windows\SYSTEM32\ntdll.dll is a valid/accessible filepath. HRESULT: -2147467259

There is an edge-case bug that exists in the current version 20210407 of BatchPatch. We’ve had several reports of users encountering the error described in this posting. Error 1612 / 1621 : No application is associated with the specified file for this operation. Please make sure that C:\Windows\SYSTEM32\ntdll.dll is a valid/accessible filepath. HRESULT: -2147467259 What’s […]

Posted in Blog, General, Tutorials | Also tagged | Comments closed

Removing Orphaned PsExec Services from Target Computers

What’s the problem? Occasionally we will hear of a situation where PsExec is not able to properly clean itself up on target computers. Under normal circumstances when PsExec runs, it installs a service on the remote computer, temporarily, in order to run the desired application/script/command. Then when it completes the action, the service is removed. […]

Posted in Blog, General, Tutorials | Also tagged | Comments closed

PsExec Version 2.33 Released March 23, 2021 – LPE Mitigation

PsExec v2.33 was released March 23, 2021. We are recommending that everyone update to this version. You can download it here. After you download it, make sure to launch it manually one time under the account that you use to run BatchPatch. Also check the file properties to make sure it isn’t being blocked by […]

Posted in Blog, General | Tagged | Comments closed

What To Do When PsExec Is Blocked By Your Anti-Virus Software

First, let me just say that PsExec is *NOT* malware and it’s *NOT* a virus. It’s simply a very useful tool, particularly for systems administrators. However, because of the fact that it is so useful to sysadmins, it also happens to be useful to hackers. Some of the major anti-virus software vendors have at one […]

Posted in Blog, General, Tutorials | Tagged | Comments closed

BatchPatch Ports

Remote connections in BatchPatch are established using a combination of WMI (Windows Management Instrumentation), SMB (Server Message Block) and PsExec. Additionally ICMP (Internet Control Message Protocol) is used for pinging. BatchPatch also needs access to the target computer’s administrative shares: ADMIN$ and IPC$. In order for PsExec and SMB to work properly… If you are […]

Posted in Blog, General, Tutorials | Also tagged , , , | Comments closed

Remotely Install Windows Updates – A Guide To Updating Your Computers Remotely

It’s not necessarily as straightforward as it seems like it might be to remotely install Windows updates. Windows Server Update Services (WSUS) provides a significant amount of help with this process, but there are still a number of important considerations to keep in mind. The great news about WSUS is that it’s free to use […]

Posted in Blog, General, Tutorials | Also tagged , , , | Comments closed

PsExec v2.1 – All Network Communication Is Now Encrypted

Hey Everyone – I just wanted to take a moment to announce to anyone who hasn’t already heard that PsExec, starting with version 2.1, which was released on March 7, 2014, now encrypts all communication between local and remote systems. No more passwords sent in the clear! In previous versions of PsExec, if you specified […]

Posted in Blog, General | Also tagged , | Comments closed