ROSA: Finding Backdoors with Fuzzing

A code-level backdoor is a hidden access, programmed and concealed within the code of a program. For instance, hard-coded credentials planted in the code of a file server application would enable maliciously logging into all deployed instances of this application. Confirmed software supply chain...

CVE-2025-4561

CVE-2025-4561 affects KingFor KFOX. Multiple sources confirm an Arbitrary File Upload vulnerability that allows remote attackers with regular privileges to upload and execute web shell backdoors, resulting in arbitrary code execution on the server. Root cause identified as improper handling of fi...

CVE-2025-4556 ZONG YU Okcat Parking Management Platform - Arbitrary File Upload

The web management interface of Okcat Parking Management Platform from ZONG YU has an Arbitrary File Upload vulnerability, allowing unauthenticated remote attackers to upload and execute web shell backdoors, thereby enabling arbitrary code execution on the server...

⚡ Weekly Recap: Nation-State Hacks, Spyware Alerts, Deepfake Malware, Supply Chain Backdoors

What if attackers aren't breaking in—they're already inside, watching, and adapting? This week showed a sharp rise in stealth tactics built for long-term access and silent control. AI is being used to shape opinions. Malware is hiding inside software we trust. And old threats are returning under...

WooCommerce Users Targeted by Fake Patch Phishing Campaign Deploying Site Backdoors

Cybersecurity researchers are warning about a large-scale phishing campaign targeting WooCommerce users with a fake security alert urging them to download a "critical patch" but deploy a backdoor instead. WordPress security company Patchstack described the activity as sophisticated and a variant ...

Rogue npm Packages Mimic Telegram Bot API to Plant SSH Backdoors on Linux Systems

Cybersecurity researchers have uncovered three malicious packages in the npm registry that masquerade as a popular Telegram bot library but harbor SSH backdoors and data exfiltration capabilities. The packages in question are listed below - node-telegram-utils 132 downloads node-telegram-bots-api...

Malicious code in helper-hoist-variables (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 6d8c7136be25a9c380c74ba6c7a58d2114704c0b102b6362802aa21f7c7ee39f Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

Fortinet Issues Fixes After Attackers Bypass Patches to Maintain Access

Hackers exploit Fortinet flaws to plant stealth backdoors on FortiGate devices, maintaining access even after patches. Update to…...

Microsoft Credits EncryptHub, Hacker Behind 618+ Breaches, for Disclosing Windows Flaws

A likely lone wolf actor behind the EncryptHub persona was acknowledged by Microsoft for discovering and reporting two security flaws in Windows last month, painting a picture of a "conflicted" individual straddling a legitimate career in cybersecurity and pursuing cybercrime. In a new extensive...

Malicious code in tiktok_4d_webapp (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware ee7b2f7d0a2a643de495f8b050981233231b51ed49c2dabb3e2de7b908b9fa7a Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

More Countries are Demanding Backdoors to Encrypted Apps

Last month, I wrote about the UK forcing Apple to break its Advanced Data Protection encryption in iCloud. More recently, both Sweden and France are contemplating mandating backdoors. Both initiatives are attempting to scare people into supporting backdoors, which are--of course--are terrible ide...

Malicious code in code-tours-github (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 19b52010e17d75323ff9a65a1270ecdb090b7b5d32ee461fa420cca7d237ed4a Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

BADBOX 2.0 Botnet Infects 1 Million Android Devices for Ad Fraud and Proxy Abuse

At least four different threat actors have been identified as involved in an updated version of a massive ad fraud and residential proxy scheme called BADBOX, painting a picture of an interconnected cybercrime ecosystem. This includes SalesTracker Group, MoYu Group, Lemon Group, and LongTV,...

Malicious code in compliancereadserv-paypal (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 5393d59c4341633c717d7af99e6afc6d7a1c673541cc84a0eb255d5d30434313 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

CVE-2025-2396

The CVE-2025-2396 entry concerns the U-Office Force product by e-Excellence. The vulnerability is an Arbitrary File Upload that allows remote attackers with regular privileges to upload and execute a Web Shell backdoor, enabling arbitrary code execution on the server. Documented impact is High (C...

PT-2025-14099

Name of the Vulnerable Software and Affected Versions CrushFTP versions 10.0.0 through 10.8.3 CrushFTP versions 11.0.0 through 11.3.0 Description An authentication bypass exists in the HTTP component of the FTP server, specifically within the AWS4-HMAC S3 compatible authorization method. The issu...

Chinese Hackers Breach Juniper Networks Routers With Custom Backdoors and Rootkits

The China-nexus cyber espionage group tracked as UNC3886 has been observed targeting end-of-life MX Series routers from Juniper Networks as part of a campaign designed to deploy custom backdoors, highlighting their ability to focus on internal networking infrastructure. "The backdoors had varying...

Android botnet BadBox largely disrupted

Removing 24 malicious apps from the Google Play store and silencing some servers almost halved a botnet known as BadBox. The BadBox botnet focuses on Android devices, but not just phones. It also affects other devices like TV streaming boxes, tablets, and smart TVs. The German BSI Federal Office...

Over 1,000 WordPress Sites Infected with JavaScript Backdoors Enabling Persistent Attacker Access

Over 1,000 websites powered by WordPress have been infected with a third-party JavaScript code that injects four separate backdoors. "Creating four backdoors facilitates the attackers having multiple points of re-entry should one be detected and removed," c/side researcher Himanshu Anand said in ...

Malicious code in mphantomed (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware 59a4903c78224a55551cb7f26f2bb62bbdb59f656e9370341a646d1f5c86aca0 Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...