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Source Byte
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Saadi Shirazi 187
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Emulating inline decryption for triaging C++ malware
[ Blog ]

References
Glory Sprout string decryptor:
gsprout_string_decryption.py
Glory Sprout Hash resolver:
gsprout_api_resolver.py
GlorySprout sample:
Malwarebazaar
Insight from GlorySprout and Taurus Stelaer:
RussianPanda Research Blog
Let’s play (again) with Predator the thief
An In-Depth analysis of the new Taurus Stealer


#malware_analysis
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Unauthenticated SSRF on Havoc C2 teamserver via spoofed demon agent
Credit : Evan Ikeda


https://blog.chebuya.com/posts/server-side-request-forgery-on-havoc-c2/
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Forwarded from Pwn3rzs
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Forwarded from Iman
درود. من یک مطلب کوتاهی نوشتم برای درک پروسه‌ای که توی کرنل رخ می‌ده موقع Null-dereference (معماری x86) و مقداری در مورد Virtual Memory Management کرنل صحبت کردم. شاید برای بچه‌هایی که روی آسیب‌پذیری‌های سمت کرنل کار می‌کنن هم جالب باشه:
https://imanseyed.github.io/posts/the-flow-of-the-kernel-upon-receiving-a-sigsegv-for-null-dereferene/
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11 Strategies of a World-Class Cybersecurity Operations Center
by mitre

Strategy 1: Know What You Are Protecting and Why
Strategy 2: Give the SOC the Authority to Do Its Job
Strategy 3: Build a SOC Structure to Match Your Organizational Needs
Strategy 4: Hire AND Grow Quality Staff
Strategy 5: Prioritize Incident Response
Strategy 6: Illuminate Adversaries with Cyber Threat Intelligence
Strategy 7: Select and Collect the Right Data
Strategy 8: Leverage Tools to Support Analyst Workflow
Strategy 9: Communicate Clearly, Collaborate Often, Share Generously
Strategy 10: Measure Performance to Improve Performance
Strategy 11: Turn up the Volume by Expanding SOC Functionality
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Forwarded from Stuff for Geeks (rВНm)
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Forwarded from APT
🖥 Introduction for to Windows kernel exploitation

Explore the Windows Kernel with HEVD, a vulnerable driver. Dive into stack overflow exploits and bypass SMEP/KPTI protections using the sysret approach.
A detailed guide for Windows kernel explotation:

Part 0: Where do I start?
Part 1: Will this driver ever crash?
Part 2: Is there a way to bypass kASLR, SMEP and KVA Shadow?
Part 3: Can we rop our way into triggering our shellcode?
Part 4: How do we write a shellcode to elevate privileges and gracefully return to userland?

#windows #kernel #driver #hevd #hacksys
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Forwarded from Dark Knight
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Global Windows outage hits computers around the world. This is linked to Crowdstrike update that cripples boot process.
Supposedly deleting “C-00000291*.sys” file in C:\Windows\System32\drivers\CrowdStrike directory fixes the issue. But editing system files you always do on your own risk :)


Credit: Lukasz Olejnik

#CrowdStrike
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I created a simple Group Policy (GPO) to automatically fix CrowdStrike BSOD (Blue screen of death) issue.

Credit : Arda Büyükkaya

https://gist.github.com/whichbuffer/7830c73711589dcf9e7a5217797ca617


How are you deploying this to BSOD'd boxes?


You can remotely apply the GPOs using tools like Group Policy Management Console (GPMC) from a server or another computer with administrative privileges. If remote access is not possible due to the BSOD, you may need to boot the affected systems using a Windows recovery environment or a bootable media, manually apply the noscripts to force Safe Mode, and then restart the systems to allow the GPOs to execute the fix. I haven't tested it across multiple affected devices yet, but theoretically, booting into Safe Mode by GPO and then deleting the problematic driver should work. The idea is based on standard troubleshooting steps that target specific faulty drivers causing the BSOD.


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Forwarded from Source Chat (main one)
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Forwarded from 🪄࿐. ݁₊ 🌸 Ame 🎀
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ClownStrike.zip
16.9 MB
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Forwarded from Infosec Fortress
Zhang Yunhai - BYPASS CONTROL FLOW GUARD COMPREHENSIVELY - Blackhat

#binary
#exploitation
———
🆔 @Infosec_Fortress
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