I'll let people guess why the move works, but spoilers for those who want to know
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After pawn takes, knight takes and is threatening the queen. There's nowhere the queen can move that defends white's knight, which means the queen has to undefend the knight. We win, net, 2 pawns.
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After pawn takes, knight takes and is threatening the queen. There's nowhere the queen can move that defends white's knight, which means the queen has to undefend the knight. We win, net, 2 pawns.
August 19, 2025 at 12:38 PM
I'll let people guess why the move works, but spoilers for those who want to know
.
.
.
.
.
.
.
.
.
After pawn takes, knight takes and is threatening the queen. There's nowhere the queen can move that defends white's knight, which means the queen has to undefend the knight. We win, net, 2 pawns.
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After pawn takes, knight takes and is threatening the queen. There's nowhere the queen can move that defends white's knight, which means the queen has to undefend the knight. We win, net, 2 pawns.
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands. albertapolitics.ca/2025/02/brac...
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands - Alberta Politics
Now that Canadians have been given a one-month reprieve from President Trump’s threatened arbitrary 25-per-cent tariffs, it’s safe to assume media and politicians north of the world’s longest undefend...
albertapolitics.ca
February 4, 2025 at 6:36 AM
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands. albertapolitics.ca/2025/02/brac...
They were, and continue to be, easy cheap scapegoats.
Are the immigrants (legal or otherwise) who pick food & wash floor making your life worse? No, it is the rich and robber barons jacking price.
Are 00.1% of kids who are trans "running the future"? No! See above
Undefend scapegoat for hate.
Are the immigrants (legal or otherwise) who pick food & wash floor making your life worse? No, it is the rich and robber barons jacking price.
Are 00.1% of kids who are trans "running the future"? No! See above
Undefend scapegoat for hate.
January 7, 2025 at 1:17 PM
They were, and continue to be, easy cheap scapegoats.
Are the immigrants (legal or otherwise) who pick food & wash floor making your life worse? No, it is the rich and robber barons jacking price.
Are 00.1% of kids who are trans "running the future"? No! See above
Undefend scapegoat for hate.
Are the immigrants (legal or otherwise) who pick food & wash floor making your life worse? No, it is the rich and robber barons jacking price.
Are 00.1% of kids who are trans "running the future"? No! See above
Undefend scapegoat for hate.
EVERYONE GETS AN LPE
Windows:
#bluehammer (#CVE_2026_33825)
#redsun (#CVE_2026_41091)
#undefend (#CVE_2026_45498)
#windowsinstaller (#CVE_2026_27910):
Linux:
#copyfail (#CVE_2026_31431)
#sshkeysignpwn (#CVE_2026_46333)
FreeBSD:
#fatgid (#CVE_2026_45250)
#execvebug (#CVE_2026_7270)
Windows:
#bluehammer (#CVE_2026_33825)
#redsun (#CVE_2026_41091)
#undefend (#CVE_2026_45498)
#windowsinstaller (#CVE_2026_27910):
Linux:
#copyfail (#CVE_2026_31431)
#sshkeysignpwn (#CVE_2026_46333)
FreeBSD:
#fatgid (#CVE_2026_45250)
#execvebug (#CVE_2026_7270)
May 21, 2026 at 4:54 PM
EVERYONE GETS AN LPE
Windows:
#bluehammer (#CVE_2026_33825)
#redsun (#CVE_2026_41091)
#undefend (#CVE_2026_45498)
#windowsinstaller (#CVE_2026_27910):
Linux:
#copyfail (#CVE_2026_31431)
#sshkeysignpwn (#CVE_2026_46333)
FreeBSD:
#fatgid (#CVE_2026_45250)
#execvebug (#CVE_2026_7270)
Windows:
#bluehammer (#CVE_2026_33825)
#redsun (#CVE_2026_41091)
#undefend (#CVE_2026_45498)
#windowsinstaller (#CVE_2026_27910):
Linux:
#copyfail (#CVE_2026_31431)
#sshkeysignpwn (#CVE_2026_46333)
FreeBSD:
#fatgid (#CVE_2026_45250)
#execvebug (#CVE_2026_7270)
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands. albertapolitics.ca/2025/02/brac...
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands - Alberta Politics
Now that Canadians have been given a one-month reprieve from President Trump’s threatened arbitrary 25-per-cent tariffs, it’s safe to assume media and politicians north of the world’s longest undefend...
albertapolitics.ca
February 4, 2025 at 3:22 PM
Brace for more bait-and-switch: Having squeezed a few concessions out of Canada, Donald Trump will soon switch to new demands. albertapolitics.ca/2025/02/brac...
Microsoft Defender under attack as three zero-days, two of them still unpatched, enable elevated access
Microsoft defender under attack as three zero-days, two of them still unpatched, enable elevated access
Attackers exploit three Microsoft Defender zero-days, code-named BlueHammer, RedSun, and UnDefend, to gain elevated access.
securityaffairs.com
April 18, 2026 at 7:28 AM
Microsoft Defender under attack as three zero-days, two of them still unpatched, enable elevated access
Die Zero-Day-Lücken im Windows Defender mit den Namen BlueHammer, RedSun und UnDefend werden offenbar attackiert. #Security
Ungepatchte Windows-Zero-Days RedSun, UnDefend und BlueHammer werden attackiert
Die Zero-Day-Lücken im Windows Defender mit den Namen BlueHammer, RedSun und UnDefend werden offenbar attackiert.
www.heise.de
April 20, 2026 at 7:46 AM
Die Zero-Day-Lücken im Windows Defender mit den Namen BlueHammer, RedSun und UnDefend werden offenbar attackiert. #Security
Ex-Microsoft researcher's PoC starves Defender's own updates until they fail. https://intel.threadlinqs.com/threat/TL-2026-2618 #ThreatIntel #BigDiskBuster #UnDefend #RedSun
September 22, 2026 at 5:29 PM
Ex-Microsoft researcher's PoC starves Defender's own updates until they fail. https://intel.threadlinqs.com/threat/TL-2026-2618 #ThreatIntel #BigDiskBuster #UnDefend #RedSun
Ex-Microsoft dev's PoC floods your disk to starve Defender updates - AV keeps running, just stops learning. https://intel.threadlinqs.com/threat/TL-2026-2613 #ThreatIntel #BigDiskBuster #UnDefend #RoguePlanet
September 22, 2026 at 3:01 PM
Ex-Microsoft dev's PoC floods your disk to starve Defender updates - AV keeps running, just stops learning. https://intel.threadlinqs.com/threat/TL-2026-2613 #ThreatIntel #BigDiskBuster #UnDefend #RoguePlanet
BigDiskBuster, a new Microsoft Defender zero-day by Abdelhamid Naceri, can block antivirus signature and platform updates on supported Windows versions, adding to a growing list of unpatched Defender flaws. #BigDiskBuster #MicrosoftDefender #Windows
New Windows Defender Zero-day Blocks Microsoft Antivirus Updates
Security researcher Abdelhamid Naceri, also known as Nightmare Eclipse, released BigDiskBuster, a Microsoft Defender zero-day that can block antivirus signature and platform updates on supported Windows versions. The disclosure is part of Naceri’s ongoing series of Windows and Defender exploits, following earlier tools like UnDefend and ShieldCrash, with several flaws still unpatched by Microsoft. #BigDiskBuster #UnDefend #ShieldCrash #NightmareEclipse #MicrosoftDefender
www.hendryadrian.com
September 22, 2026 at 2:30 PM
BigDiskBuster, a new Microsoft Defender zero-day by Abdelhamid Naceri, can block antivirus signature and platform updates on supported Windows versions, adding to a growing list of unpatched Defender flaws. #BigDiskBuster #MicrosoftDefender #Windows
Microsoft Defender Under Siege
Microsoft Defender Under Siege
Overview Three zero-day exploits targeting Microsoft Defender — BlueHammer, RedSun, and UnDefend — have been confirmed exploited in the wild by threat actors. All three were publicly released on Gi…
thecyberthrone.in
April 18, 2026 at 11:02 AM
Microsoft Defender Under Siege
[ACTU] Mise à jour de notre article : nouvelles infos sur les failles RedSun, UnDefend et BlueHammer. Exploits publics, attaques en cours… la situation se précise.
www.malekal.com/windows-des-...
www.malekal.com/windows-des-...
www.malekal.com
April 18, 2026 at 1:51 PM
[ACTU] Mise à jour de notre article : nouvelles infos sur les failles RedSun, UnDefend et BlueHammer. Exploits publics, attaques en cours… la situation se précise.
www.malekal.com/windows-des-...
www.malekal.com/windows-des-...
Hier ein paar zuletzt häufig geteilte #News:
Schlechtes Handynetz: Neue App für Minderungsansprüche verfügbar
Dobrindt warnt vor Ende freiwilliger Inhaltedurchsuchung
Ungepatchte Windows-Zero-Days RedSun, UnDefend und BlueHammer werden attackiert
#verpassky
Schlechtes Handynetz: Neue App für Minderungsansprüche verfügbar
Dobrindt warnt vor Ende freiwilliger Inhaltedurchsuchung
Ungepatchte Windows-Zero-Days RedSun, UnDefend und BlueHammer werden attackiert
#verpassky
Schlechtes Handynetz: Neue App für Minderungsansprüche verfügbar
Handyvertrag bombastisch gut, Realität mies: Wer so eine Erfahrung macht, kann nun Tests für einen rechtssicheren Minderungsanspruch starten.
www.heise.de
April 20, 2026 at 4:01 PM
Huntress researchers Anna Pham & Michael Tigges write about having observed the use of Nightmare-Eclipse tooling - including BlueHammer, RedSun and UnDefend - during a real-world intrusion investigation. www.huntress.com/blog/nightma...
April 22, 2026 at 8:48 AM
Huntress researchers Anna Pham & Michael Tigges write about having observed the use of Nightmare-Eclipse tooling - including BlueHammer, RedSun and UnDefend - during a real-world intrusion investigation. www.huntress.com/blog/nightma...
As it turns out, Undefend (in its unadulterated form, compiled fresh off GitHub) is now mitigated by Windows Defender, setting off the generic Trojan:Win64/KillAV.AKP!MTB detection.
RedSun is still unmitigated.
RedSun is still unmitigated.
April 21, 2026 at 4:17 PM
As it turns out, Undefend (in its unadulterated form, compiled fresh off GitHub) is now mitigated by Windows Defender, setting off the generic Trojan:Win64/KillAV.AKP!MTB detection.
RedSun is still unmitigated.
RedSun is still unmitigated.
BlueHammer, RedSun, and UnDefend: Three Windows Defender Zero-Days Exploited in the Wild socradar.io/blog/blueham...
BlueHammer, RedSun, and UnDefend: Three Windows Defender Zero-Days Exploited in the Wild
Three Windows Defender vulnerabilities disclosed as zero-days in April 2026 are now being actively exploited: BlueHammer, RedSun, and UnDefend...
socradar.io
April 17, 2026 at 11:41 AM
BlueHammer, RedSun, and UnDefend: Three Windows Defender Zero-Days Exploited in the Wild socradar.io/blog/blueham...
Sorry - I'm Canadian east coast. 🇨🇦 I have no words. We share the longest undefend land border with Nazis. Wtf
January 24, 2026 at 8:28 PM
Sorry - I'm Canadian east coast. 🇨🇦 I have no words. We share the longest undefend land border with Nazis. Wtf
Microsoft Patches Exploited UnDefend and RedSun Defender Zero-Days https://packetstorm.news/news/view/41700 #news
May 21, 2026 at 7:26 PM
Microsoft Patches Exploited UnDefend and RedSun Defender Zero-Days https://packetstorm.news/news/view/41700 #news
CTA Member SOCRadar on the three Windows Defender vulnerabilities disclosed as zero-days that are being actively exploited: BlueHammer, RedSun, and UnDefend.
socradar.io/blog/blueham...
#cybersecurity #threatintelligence #0day #vulnerabilities
socradar.io/blog/blueham...
#cybersecurity #threatintelligence #0day #vulnerabilities
BlueHammer, RedSun, and UnDefend: Three Windows Defender Zero-Days Exploited in the Wild
Three Windows Defender vulnerabilities disclosed as zero-days in April 2026 are now being actively exploited: BlueHammer, RedSun, and UnDefend...
socradar.io
April 17, 2026 at 8:34 PM
CTA Member SOCRadar on the three Windows Defender vulnerabilities disclosed as zero-days that are being actively exploited: BlueHammer, RedSun, and UnDefend.
socradar.io/blog/blueham...
#cybersecurity #threatintelligence #0day #vulnerabilities
socradar.io/blog/blueham...
#cybersecurity #threatintelligence #0day #vulnerabilities
Nightmare Eclipse、新PoC「BigDiskBuster」を公開 Microsoft Defenderの更新停止を狙う、Microsoft公式対応は未公表
rocket-boys.co.jp/security-mea...
#セキュリティ対策Lab #security #securitynews #セキュリティ #セキュリティニュース
rocket-boys.co.jp/security-mea...
#セキュリティ対策Lab #security #securitynews #セキュリティ #セキュリティニュース
Nightmare Eclipse、新PoC「BigDiskBuster」を公開 Microsoft Defenderの更新停止を狙う、Microsoft公式対応は未公表|セキュリティニュースのセキュリティ対策Lab
Nightmare EclipseがMicrosoft Defenderの更新を妨害する新PoC「BigDiskBuster」を公開。プラットフォームとセキュリティインテリジェンス更新を停止させると主張しています。MicrosoftのCVE・修正は未公表。過去のUnDefend、ShieldBreak、ShieldCrashとの時系列と企業の確認事項を整理
rocket-boys.co.jp
September 23, 2026 at 11:04 PM
Nightmare Eclipse、新PoC「BigDiskBuster」を公開 Microsoft Defenderの更新停止を狙う、Microsoft公式対応は未公表
rocket-boys.co.jp/security-mea...
#セキュリティ対策Lab #security #securitynews #セキュリティ #セキュリティニュース
rocket-boys.co.jp/security-mea...
#セキュリティ対策Lab #security #securitynews #セキュリティ #セキュリティニュース
Microsoft pushed emergency patches on May 21 for two actively exploited Defender zero-days. RedSun escalates to SYSTEM via symbolic-link tricks. UnDefend silently disables signature updates. CISA added both to the Known Exploited Vulnerabilities list.
May 22, 2026 at 5:08 PM
Microsoft pushed emergency patches on May 21 for two actively exploited Defender zero-days. RedSun escalates to SYSTEM via symbolic-link tricks. UnDefend silently disables signature updates. CISA added both to the Known Exploited Vulnerabilities list.
⚠️ Zero-day Windows
Trois failles de sécurité zero-day présentes dans Microsoft Defender sont désormais exploitées par les cybercriminels : BlueHammer, RedSun et UnDefend.
Ce que l'on sait 👇
-www.it-connect.fr/windows-troi...
#windows #zeroday #infosec
Trois failles de sécurité zero-day présentes dans Microsoft Defender sont désormais exploitées par les cybercriminels : BlueHammer, RedSun et UnDefend.
Ce que l'on sait 👇
-www.it-connect.fr/windows-troi...
#windows #zeroday #infosec
April 24, 2026 at 2:43 PM
⚠️ Zero-day Windows
Trois failles de sécurité zero-day présentes dans Microsoft Defender sont désormais exploitées par les cybercriminels : BlueHammer, RedSun et UnDefend.
Ce que l'on sait 👇
-www.it-connect.fr/windows-troi...
#windows #zeroday #infosec
Trois failles de sécurité zero-day présentes dans Microsoft Defender sont désormais exploitées par les cybercriminels : BlueHammer, RedSun et UnDefend.
Ce que l'on sait 👇
-www.it-connect.fr/windows-troi...
#windows #zeroday #infosec