October 12, 2021

How do hackers find vulnerable computers in the global network?

Exactly one week ago at our office was enabled RDP in a Windows 10 PC. One week passed and that PC was infected with **ransomware**. So, how do these guys find PCs like this one in the global network?

Comments

Angretlam

Bots are constantly scanning every public IP around the clock. Just watch the access logs and the number of requests that will come in unsolicited, it’s insane. In addition to bots, there are tools like Shodan which are publically available and actively scan and report on all IPs and their suspected vulnerabilities. This is the nature of an open internet. From an attackers standpoint, it’s a numbers game: if I assume .001% of machines are poorly configured, then I only need to scan 100,000 IPs to find a vulnerability.

ahuet_88

Shodan.io

xenithangell

Nmap scanning of random IPs might be a start.

shiftybyte

Scanning the world themselves.

Or services like shodan.io

One week is 5 days longer than i would have given it…

k4dxk4

Shodan.io is a great source too

CPAtech

It takes more than just enabling RDP on a PC. They would still need a way through your perimeter. Was RDP exposed to the internet at the firewall?

1rightwingextremist

Sounds like someone left the firewall off on the pc.

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