Daily Writeups
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Daily Writeups
⤷ Title: Linux Boot Flaw (CVE-2016-4484): Secure Boot & Disk Encryption Bypassed, Persistent Malware Possible
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𐀪 Author: ddos
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ⴵ Time: Wed, 09 Jul 2025 02:39:23 +0000
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⌗ Tags: #Vulnerability #cybersecurity #Debug Shell #Fedora #Full Disk Encryption #Initramfs #Linux #malware #privilege escalation #Root Access #Secure Boot #ubuntu #vulnerability
Penetration Testing Tools
Linux Boot Flaw (CVE-2016-4484): Secure Boot & Disk Encryption Bypassed, Persistent Malware Possible
A critical flaw in Linux boot (CVE-2016-4484) bypasses Secure Boot and disk encryption via a debug shell in initramfs, allowing local attackers to implant persistent malware. Patch now!
17 views
Daily Writeups
⤷ Title: SMM Vulnerabilities in Gigabyte UEFI Firmware Expose Systems to Stealthy Attacks
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𐀪 Author: Ddos
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ⴵ Time: Mon, 14 Jul 2025 00:28:03 +0000
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⌗ Tags: #Vulnerability Report #cybersecurity #firmware #Gigabyte #Intel BootGuard #privilege escalation #rce #Remote Code Execution #Secure Boot #SMM #System Management Mode #UEFI #Vulnerability
Daily CyberSecurity
SMM Vulnerabilities in Gigabyte UEFI Firmware Expose Systems to Stealthy Attacks
CERT/CC warns of critical flaws in Gigabyte UEFI firmware, allowing SMRAM writes and SMM code execution. Patch immediately to prevent firmware implants and Secure Boot bypass.
16 views
Daily Writeups
⤷ Title: Battlefield 6’s Controversial Anti-Cheat: Why Secure Boot Is Required
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𐀪 Author: ddos
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ⴵ Time: Mon, 01 Sep 2025 07:50:08 +0000
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⌗ Tags: #Technology #anti_cheat #Battlefield 6 #cybersecurity #EA #Javelin #PC Gaming #Secure Boot
Penetration Testing Tools
Battlefield 6's Controversial Anti-Cheat: Why Secure Boot Is Required
Battlefield 6's beta test required players to enable Secure Boot, sparking controversy. EA says it's a necessary evil to fight cheaters at the kernel level.
12 views
Daily Writeups
⤷ Title: Secure Boot Bypassed? What You Need to Know About UEFI Ransomware
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𐀪 Author: Truspex
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ⴵ Time: Sat, 13 Sep 2025 09:34:32 GMT
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⌗ Tags: #uefi #secure_boot #malware #cybersecurity #ransomware
Medium
Secure Boot Bypassed? What You Need to Know About UEFI Ransomware
Ransomware just leveled up. Forget encrypting your files — this new threat burrows deep into your system’s firmware. Imagine the panic…
11 views
Daily Writeups
⤷ Title: HybridPetya: The New Ransomware Bypassing Secure Boot
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𐀪 Author: ddos
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ⴵ Time: Mon, 15 Sep 2025 03:19:02 +0000
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⌗ Tags: #Malware #bootkit #cybersecurity #ESET #HybridPetya #malware #ransomware #Secure Boot
Penetration Testing Tools
HybridPetya: The New Ransomware Bypassing Secure Boot
Researchers at ESET have reported the emergence of a new ransomware strain dubbed HybridPetya, which blends techniques from
9 views
Daily Writeups
⤷ Title: URGENT Patch: GRUB2 Flaws Allow Secure Boot Bypass via Use-After-Free Exploits
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𐀪 Author: ddos
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ⴵ Time: Mon, 24 Nov 2025 03:30:07 +0000
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⌗ Tags: #Vulnerability #Bootloader #CVE_2025_61661 #GRUB2 #Linux Security #SBAT #Secure Boot #UEFI #use_after_free
Penetration Testing Tools
URGENT Patch: GRUB2 Flaws Allow Secure Boot Bypass via Use-After-Free Exploits
A new GRUB2 patch fixes six critical flaws (like CVE-2025-61661) that could bypass UEFI Secure Boot. Full boot chain rebuild and SBAT support are required.
21 views
Daily Writeups
⤷ Title: 1 Billion PCs Stranded: Windows 11 Transition Lags, Increasing Security Risk
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𐀪 Author: ddos
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ⴵ Time: Thu, 04 Dec 2025 08:11:19 +0000
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⌗ Tags: #Technology #Windows #Dell Technologies #End of Life #EOL #GPT #OS Transition #privacy #Secure Boot #Security Risk #Windows 10 #Windows 11
Penetration Testing Tools
1 Billion PCs Stranded: Windows 11 Transition Lags, Increasing Security Risk
Windows 10 has now been officially retired from support, yet it still powers nearly a billion personal computers
6 views
Daily Writeups
⤷ Title: Chain of Trust in Secure Boot
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𐀪 Author: Epteck GmbH
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ⴵ Time: Mon, 08 Dec 2025 07:23:27 GMT
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⌗ Tags: #compliance_management #secure_boot #secure_by_design #cybersecurity #linux
Medium
Chain of Trust in Secure Boot
Secure boot is a fundamental security mechanism that guarantees a device only runs the trusted code it was designed to run. This process…
10 views
Daily Writeups
⤷ Title: Patch Tuesday Jan 2026: Microsoft Fixes 114 Flaws & 3 Zero-Days
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𐀪 Author: Ddos
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ⴵ Time: Wed, 14 Jan 2026 00:11:47 +0000
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⌗ Tags: #Vulnerability Report #Agere Soft Modem #CISA #CVE_2026_20805 #LSASS #Microsoft #Office Vulnerability #Patch Tuesday #Secure Boot #Windows Security #zero_day
Daily CyberSecurity
Patch Tuesday Jan 2026: Microsoft Fixes 114 Flaws & 3 Zero-Days
Microsoft Jan 2026 Patch Tuesday fixes 114 flaws, including 3 zero-days. CVE-2026-20805 is actively exploited. Update Windows & Office immediately.
26 views
Daily Writeups
⤷ Title: The June Deadline: Microsoft Issues Urgent Secure Boot Certificate Updates
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𐀪 Author: Ddos
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ⴵ Time: Thu, 15 Jan 2026 08:42:51 +0000
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⌗ Tags: #Windows #24H2 #25H2 #Certificate Rotation #Cybersecurity 2026 #Hardware Security #IT Administration #Microsoft #Secure Boot #UEFI #Windows 11
Daily CyberSecurity
The June Deadline: Microsoft Issues Urgent Secure Boot Certificate Updates
Microsoft begins rotating Secure Boot certificates in Jan 2026. Act now to prevent boot failures and maintain security before the June 2026 expiration.
16 views
Daily Writeups
⤷ Title: Microsoft’s 2026 Kickoff: 110+ Patches Fix Active Zero-Days and Office Flaws
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𐀪 Author: ddos
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ⴵ Time: Thu, 15 Jan 2026 08:24:36 +0000
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⌗ Tags: #Vulnerability #Windows #CVE_2026_20805 #cybersecurity #Infosec News #LSASS #Microsoft #Office 2026 #Patch Tuesday #RCE #Secure Boot #Windows 11 #zero_day
Penetration Testing Tools
Microsoft's 2026 Kickoff: 110+ Patches Fix Active Zero-Days and Office Flaws
Microsoft has inaugurated its first Patch Tuesday of 2026, disseminating a comprehensive suite of mandatory security remediations for
11 views
Daily Writeups
⤷ Title: Defeating the Epochalypse: GRUB 2.14 Arrives to Save Linux from Year 2038
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𐀪 Author: Ddos
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ⴵ Time: Fri, 16 Jan 2026 03:12:22 +0000
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⌗ Tags: #Linux #Argon2 #Bootloader #EROFS #GNU Project #GRUB 2.14 #NX Protection #Open Source 2026 #Secure Boot #TPM 2.0 #Year 2038
Daily CyberSecurity
Defeating the Epochalypse: GRUB 2.14 Arrives to Save Linux from Year 2038
GRUB 2.14 launches in Jan 2026, fixing the Year 2038 bug and adding Argon2, TPM 2.0, and EROFS support for the ultimate Linux boot security.
9 views
Daily Writeups
⤷ Title: The 15-Year Deadline: Microsoft Launches Massive “Secure Boot” Certificate Rotation Ahead of June 2026
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𐀪 Author: Ddos
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ⴵ Time: Wed, 11 Feb 2026 09:00:54 +0000
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⌗ Tags: #Windows #2011 CA #2023 CA #Certificate Expiration #Firmware Security #IT Administration #KB5025885 #Secure Boot #Tech News 2026 #UEFI #Windows 11 #Windows Update
Daily CyberSecurity
The 15-Year Deadline: Microsoft Launches Massive "Secure Boot" Certificate Rotation Ahead of June 2026
Microsoft is rotating UEFI Secure Boot certificates before they expire in June 2026. Ensure your PC stays secure by following this massive coordination effort.
10 views
Daily Writeups
⤷ Title: Proof-of-Concept Disclosed: New “BitUnlocker” Attack Bypasses Patched Windows 11 BitLocker via Certificate Downgrade
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𐀪 Author: Ddos
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ⴵ Time: Tue, 12 May 2026 01:01:32 +0000
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⌗ Tags: #Vulnerability Report #bitlocker #BitUnlocker #CVE_2025_48804 #downgrade attack #github #infosec #Intrinsec #Microsoft STORM #PoC #Secure Boot #TPM #Windows 11
Daily CyberSecurity
Proof-of-Concept Disclosed: New "BitUnlocker" Attack Bypasses Patched Windows 11 BitLocker via Certificate Downgrade
Public PoC Alert: The BitUnlocker Downgrade Attack bypasses BitLocker on patched Windows 11 machines in under 5 minutes. Learn how to secure your TPM with a PIN.
13 views
Daily Writeups
⤷ Title: Microsoft Explains the New “SecureBoot” Folder in Windows 11 KB5089549 Update
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𐀪 Author: Ddos
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ⴵ Time: Tue, 19 May 2026 05:43:42 +0000
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⌗ Tags: #Windows #C:\Windows\SecureBoot #Detect_SecureBootCertUpdateStatus #Device Security #Enterprise Fleet Management #KB5089549 #PowerShell Script #Secure Boot Expiration #Trust Chain Renovation #UEFI CA 2023 #Windows 11 May Update
Daily CyberSecurity
Microsoft Explains the New "SecureBoot" Folder in Windows 11 KB5089549 Update
Seeing a new SecureBoot folder under C:Windows? Microsoft confirms it is part of an essential KB5089549 update to replace expiring 2011 UEFI certificates.
12 views