随着端点检测与响应（EDR）技术及反病毒软件的日益成熟，传统依赖于可执行文件（.exe, .dll）落地执行的恶意软件生存空间受到极大挤压。攻击者被迫不断演进其战术、技术与过程（TTPs），寻求更隐蔽的入侵途径。在此背景下，“无文件攻击”逐渐成为主流趋势，其核心特征是不在磁盘上留下明显的恶意文件实体，而是利用操作系统自带的合法管理工具（如PowerShell, WMI, PsExec等）在内存中执 ...

Signed malware backed by a stolen EV certificate deployed legitimate RMM tools to gain persistent access inside enterprise ...

IntroductionIn January 2026, Zscaler ThreatLabz observed activity by a suspected Iran-nexus threat actor targeting government officials in Iraq. ThreatLabz discovered previously undocumented malware ...

PowerShell can do far more than most users realize. Explore 10 hidden capabilities that save time, improve reporting, and supercharge your workflow.

A sophisticated Python-based malware deployment uncovered during a fraud investigation has revealed a layered attack involving obfuscation, disposable infrastructure and commercial offensive tools.

A convincing lookalike of the popular Huorong Security antivirus has been used to deliver ValleyRAT, a sophisticated Remote Access Trojan (RAT) built on the Winos4.0 framework, to users who believed ...

A fake CAPTCHA scam is tricking Windows users into running PowerShell commands that install StealC malware and steal passwords, crypto wallets, and more.

When you purchase through links on our site, we may earn an affiliate commission. Set AllTechNerd as Preferred source on Google In this post, I’ll walk you through how to create shortcuts for files, ...

PowerShell is a versatile and powerful scripting language that can be used to automate various tasks on your system. One common task that often requires the use of PowerShell is working with strings.

Have you ever heard of FINDSTR and Select-String? Select-String is a cmdlet that is used to search text & the patterns in input strings & files. It is similar to grep on Linux & FINDSTR on Windows. In ...

A PowerShell script using WBAdmin can create full system backups of Windows 11, offering a simple, scriptable alternative for advanced users. Over the last couple of years, I have written a few blog ...