Is the phrase “This script contains malicious content and has been blocked by your antivirus software” familiar to you? It’s generated by Antimalware Scan Interface (AMSI), a protection mechanism embedded in Windows 10 that blocks the execution of malicious scripts. But can AMSI be bypassed? Sure, and today I will show how to do this.Read full article →
Being employed with BI.ZONE, I have to exploit Blind SQL injection vulnerabilities on a regular basis. In fact, I encounter Blind-based cases even more frequently than Union- or Error-based ones. But how to raise the efficiency of such attack? This article provides an overview of approaches used to exploit Blind SQL injection and techniques expediting the exploitation.Read full article →
Once a quarter, PostgreSQL publishes minor releases containing vulnerabilities. Sometimes, such bugs make it possible to make an unprivileged user aRead full article →
local king superuser. To fix them, Postgres DBAs release patches simultaneously with the updates and sleep peacefully. However, many forks share a large codebase with PG and remain vulnerable! I reviewed the historical Postgres CVEs in search of interesting security holes and found plenty of exciting stuff there.
As you are likely aware, forensic analysis tools quickly become obsolete, while hackers continuously invent new techniques enabling them to cover tracks! As a result, valiant DFIR (Digital Forensics and Incident Response) fighters suffer fiascoes on a regular basis. So, I suggest to put aside the outdated (but no less sharp Scalpel) for now and look around for new tools.Read full article →
Network fraudsters and carders continuously invent new ways to steal money from cardholders and card accounts. This article discusses techniques used by criminals to bypass security systems protecting bank cards.Read full article →
Virtualization tools are required in many situations: testing of security utilities, personnel training in attack scenarios or network infrastructure protection, etc. Some admins reinvent the wheel by assembling fearsome combinations of virtual machines and all kinds of software. I suggest another way: set up an emulation platform using EVE-NG and create on its basis a universal scalable cyberpolygon enabling networking and security specialists to polish their skills.Read full article →
Once I was asked: is it possible to write a reverse shell some 200 bytes in size? This shell should perform the following functions: change its name and PID on a regular basis, make you coffee, and hack the Pentagon… Too bad, this is most likely impossible. But the task seemed interesting and challenging to me. Let’s see whether it can be implemented.Read full article →