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Kevin Mcpherspm
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cyber-attack

I am trying the to find an application were if my laptop or desktop was compromise meaning by cyber-attack, and it’s a new an unknown bug I would like to setup a data file or word document, which if the attack click on the file or document it will trigger an email to my email account.
Cyber Security

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btan

8/22/2022 - Mon
Kimputer

You need to monitor the read actions by the file system (as the attacker would be copying the file, not opening it on your PC). Sadly, you'd be inundated with alerts, as an idle file will be read A LOT OF times during the times the PC is on (not only normal Windows operations, but also the virus scanner etc).
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Perarduaadastra

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Kevin Mcpherspm

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Ok I was thinking like for example, I can setup a fake file with personal information so if someone break in to the system they will be tempted to open the file by them opening the file an email would be trigger
John

If someone actually gets into your system, there won't be time for you to fuss about and analyze it.

Make sure you have top notch spam control to prevent these attacks in the first place.
Make sure your Windows Firewall is ON and any perimeter firewall is protecting against inbound attacks.
Make sure you have a regular and disconnected backup of your system.
Do not open email from strangers.
Do not go to dodgy websites.

Remember, when you click on a dodgy link, you are inviting harmful stuff in and firewalls will not stop this.

If Windows 10, use Windows Defender, and turn Smart Screen ON in Defender settings (App and Browser control). This works best with Edge. I do this myself.
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William Peck
btan

Check for indicator of compromise on your machine to avoid false alarm

If the machine already has AV and there are no alert flags but you find the machine may be compromised then it need to do in depth like forensic rather than just having a tool to scan. There are tools like GMER (Rootkit Detector and Remover), Anti-RootKit (Malwarebytes), Spybot detector, AdwCleaner & Junkware Removal Tool (MalwareByte) for a first cut checks. If there are none, then forensic is inevitable.

Nonetheless, if suspected compromised, dont use the machine anymore, disconnect from internet/network and rebuild with backup data. Anyway Zero days (no patch) malware will bypass the detection but the callback to remote, carrier/dropper of the malware traces in the machine should be surfaced out thru forensic .. Have some professional help if possible.