Phirautee

Phirautee 랜섬웨어 공격과 그 영향에 대한 사용자 인식을 높이기 위한 개념 증명 크립토 바이러스입니다. Phirautee는 순수하게 PowerShell로 작성되었으며 타사 라이브러리가 필요하지 않습니다. 이 도구는 정보를 탈취하고, 조직의 데이터를 인질로 삼아 대금을 요구하거나 영구적으로 암호화/삭제합니다. Phirautee는 Living off the Land LotL 랜섬웨어로, 합법적인 PowerShell 명령과 작업을 이용하여 운영 체제를 공격합니다. 스크린샷 랜섬 팝업 창: 성공적인 감염 후 바탕 화면: DEF...

Zero-Click-RCE-Incident-Response-CVE-2025-21298

침해사고 대응: Windows OLE 제로클릭 RCE CVE-2025-21298 프로젝트 개요 이 프로젝트는 치명적Critical 심각도의 제로클릭 원격 코드 실행RCE 시도에 대한 종단 간 조사 및 차단 과정을 문서화한 것입니다. EDR 텔레메트리와 위협 인텔리전스를 활용하여 자동화된 방어 체계를 우회하고 명령 및 제어C2 통신을 수립한 "Living off the Land"LotL 공격을 식별했습니다. 주요 목표 제로데이 익스플로잇에 대한 우선순위 높은 SIEM 알림 트리아지 수행. 무기화된 RTF 첨부 파일에 대한 정적 ...

SENTINEL: A Multi-Pathway Architecture for Detecting Living-Off-The-Land APT Attacks on Windows Command Lines

Living-Off-the-Land LOTL is the dominant evasion technique of Advanced Persistent Threat APT actors, exploiting legitimate Windows utilities to conduct malicious operations without deploying custom malware and enabling state-sponsored campaigns to maintain persistent access within military and...

2024 State of Malware in Education report: Top 6 cyberthreats facing K-12 and Higher Ed

Educational institutions may face a range of cyberthreats in 2024, but our 2024 State of Malware in Education report identifies the six most critical ones. Ransomware, for example, stands out as a key threat for schools and universities. The report covers how last year, we witnessed a 92% increas...

ALPHV is singling out healthcare sector, say FBI and CISA

In an updated StopRansomware security advisory, the Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Department of Health and Human Services HHS has warned the healthcare industry about the danger of the ALPHV ransomware group, also known as...

FBI and CISA publish guide to Living off the Land techniques

The Cybersecurity and Infrastructure Security Agency CISA, National Security Agency NSA, Federal Bureau of Investigation FBI, and other authoring agencies have released a joint guidance about common living off the land LOTL techniques and common gaps in cyber defense capabilities. Living Off The...

Webinar recap: Ransomware gangs and Living Off The Land attacks (LOTL)

Discover the intersection of Ransomware-as-a-Service RaaS gangs and Living Off The Land LOTL attacks in our latest webinar, now available on-demand, led by cybersecurity experts Ian Thomas, Mark Stockley, and Bill Cozens. The webinar revealed how RaaS gangs use LOTL tactics, leveraging legitimate...

Ransomware gangs and Living Off the Land (LOTL) attacks: A deep dive

We’ve told you about ransomware-as-a-service RaaS gangs; we’ve told you about living off the Land LOTL attacks. What do you get when you bring the two together? Bad news. Our recent report, Threat Brief: Ransomware Gangs & Living Off the Land Attacks, takes a deep dive into why the intersection o...

Scattered Spider ransomware gang falls under government agency scrutiny

As you may have read in our November Ransomware Review, Scattered Spider is a relatively new, albeit dangerous, ransomware gang who made headlines in September for attacking MGM Resorts and Caesar Entertainment. For small security teams, one of the most important findings about the group is their...

Russian Hackers Sandworm Cause Power Outage in Ukraine Amidst Missile Strikes

The notorious Russian hackers known as Sandworm targeted an electrical substation in Ukraine last year, causing a brief power outage in October 2022. The findings come from Google's Mandiant, which described the hack as a "multi-event cyber attack" leveraging a novel technique for impacting...

CISA issues warning to US businesses: Beware of China's state-sponsored cyber actor

The US Cybersecurity and Infrastructure Security Agency CISA has an urgent message for US businesses: watch out for Volt Typhoon, a threat actor sponsored by the Peoples Republic of China PRC. The agency's joint Cybersecurity Advisory CSA published last week highlights a cluster of tactics,...

Living Off the Land (LOTL) attacks: Detecting ransomware gangs hiding in plain sight

Regular readers of our monthly ransomware review read our April edition here know that Ransomware-as-a-Service RaaS gangs have been making headlines globally with their disruptive attacks on organizations. Sometimes, though, its not enough to merely know about of the problem. In order to truly...

Hackers Gain Fileless Persistence on Targeted SQL Servers Using a Built-in Utility

Microsoft on Tuesday warned that it recently spotted a malicious campaign targeting SQL Servers that leverages a built-in PowerShell binary to achieve persistence on compromised systems. The intrusions, which leverage brute-force attacks as an initial compromise vector, stand out for their use of...

WIRTE Hacker Group Targets Government, Law, Financial Entities in Middle East

Government, diplomatic entities, military organizations, law firms, and financial institutions primarily located in the Middle East have been targeted as part of a stealthy malware campaign as early as 2019 by making use of malicious Microsoft Excel and Word documents. Russian cybersecurity compa...

New 'Moses Staff' Hacker Group Targets Israeli Companies With Destructive Attacks

A new politically-motivated hacker group named "Moses Staff" has been linked to a wave of targeted attacks targeting Israeli organizations since September 2021 with the goal of plundering and leaking sensitive information prior to encrypting their networks, with no option to regain access or...

Encrypted & Fileless Malware Sees Big Growth

A full 91.5 percent of malware was delivered using HTTPS-encrypted connections in the second quarter, researchers said, making attacks more evasive. That’s according to WatchGuard Technologies’ latest report on findings within its telemetry, which also found that these detections come primarily...

Phirautee - A PoC Crypto Virus To Spread User Awareness About Attacks And Implications Of Ransomwares

A proof of concept crypto virus to spread user awareness about attacks and implications of ransomwares. Phirautee is written purely using PowerShell and does not require any third-party libraries. This tool steals the information, holds an organisation’s data to hostage for payments or permanentl...