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Intelligence View

⚡ tsecurity.de Intelligence

Messed something up...

So, I was running Debian 12 in a VM for a bit and reasonably comfortable with it and increasingly annoyed with Windows both pestering me to input my key if I try to do anything on it (even update the time) or upgrade to 11 because 10 won't…

Linux Tipps & Hardening reddit.com 20.08.2025, 05:54 Uhr 2 Min. Lesezeit

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I decided today to oust Windows and make Debian 12 the main boot. Trouble is, my computer (hardware) is really new. A friend built it so I don't have all the details but they built it not long ago. So, after installing Debian 12 I get a config error which I was told indicated incompatibility with the hardware. I then go and get the new release hoping this will resolve the issue... it does not. When I boot into BIOS/UEFI I see 3 options, Debian 12 and two named for my USB with the .iso file for Debian 13. If I choose Debian 12 I get the install screen but the same config error after install, I eventually end up at a "terminal" where I can input my username/pw but it doesn't recognize any commands. Or I can choose the USB Debian 13 options which takes me GNU GRUB. I'm not really sure what to do here.

grub> ls

(proc) (memdisk) (hd0) (hd0, gpt2) (hd0, gpt1) (hd1) (hd1, gpt3) (hd1, gpt2) (hd1, gpt1)

I don't really know what this means. Why isn't it recognizing my USB as something to install from? and also reading it twice? Is there any way to clear everything and start over? It was probably hubris to try to run this outside of a VM. I'd even accept defeat and take instructions for getting Windows back at this point.

(wasn't sure what flair to use for this)

submitted by /u/liminal_reality
[link] [comments]

IR-PLAYBOOK-VULN-REMEDIATIONMEDIUM

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Asset Inventory

Asset-Datenbank nach betroffenen Komponenten, Versionen und exposed Ports abfragen.

nmap -sV --script vuln -p- <target-network>

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SIEM-Regeln und IDS-Signaturen (Snort/Suricata) auf Angriffsversuche schärfen.

tail -f /var/log/suricata/fast.log | grep <cve>

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1-Click Detection Engineering: Sigma & YARA RulesSOC Ready

Regeln anzeigen

title: Detect Exploitation - Messed something up...
id: 095d064f-fec7-4c25-a79c-f76a344e10a2
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
  - https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
  category: network_connection
  product: any
detection:
  selection:
      CommandLine|contains:
        - 'exploit'
  condition: selection
falsepositives:
  - Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
  - attack.initial_access

rule CTI_Threat_Indicator {
    meta:
        author = "iShareStuff CTI Automated Detection Engine"
        date = "2026-09-24"
        description = "YARA Signature for "
    strings:
        $str = "Messed something up..." ascii wide
    condition:
        any of them
}

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Format: python

#!/usr/bin/env python3
# Exploit Title: PoC for Target
import socket, sys
target = '192[.]168[.]1[.]10'
url = 'hxxp://target[.]local/vuln'
s = socket.socket()
s.connect((target, 80))
s.send(b'GET / HTTP/1.1\r\nHost: target.local\r\n\r\n')

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