Staying Hidden on the Endpoint: Evading Detection with Shellcode

True red team assessments require a secondary objective of avoiding detection. Part of the glory of a successful red team assessment is not getting detected by anything or anyone on the system. As modern Endpoint Detection and Response EDR products have matured over the years, the red teams must...

Zebrocy Retools for New Political Attacks

The APT known as the Sednit threat group also known as Sofacy, APT28 and Fancy Bear has kicked off a fresh spearphishing campaign, that was spotted targeting government entities with the Zebrocy backdoor. The malware features a rewritten and newly-improved backdoor and downloader, indicating an...

CB TAU Threat Intelligence Notification: Formbook Harvests Data By Intercepting Clients

Formbook is an information stealer which has been around for the past few years. Formbook acts as a form grabber which harvests credentials, passwords, banking details, key strokes and network requests, by intercepting web browser and other clients such as email and IM. The particular sample...

Mozilla Firefox Type Obfuscation Vulnerability

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the United States. A type obfuscation vulnerability exists in Spidermonkey in Mozilla Firefox versions prior to 69, which can be exploited by attackers to cause a denial of service with the help of a specially crafted...

PyFuscation - Obfuscate Powershell Scripts By Replacing Function Names, Variables And Parameters

PyFuscation Requires python3 usage: PyFuscation.py -h -f -v -p --ps SCRIPT Optional arguments: • -h, --help show this help message and exit • -f Obfuscate functions ○ Do this First ... Its probably the most likely to work well • -v Obfuscate variables ○ If your going to obfuscate variables do the...

Quantopian: Cross-site scripting via hardcoded front-end watched expression.

Hello, favorite security team. This is so far most interesting XSS i've found on your website. And also this is 10th bug i report you, so im gonna celebrate. Summary: Via hardcoded front-end code in algo debugger one is able to execute XSS on algorithm collaborator. One is able to use python to...

Norman Cryptominer Employs Sophisticated Obfuscation Tactics

A never-before-seen cryptomining variant, dubbed “Norman” after one of its executable files, has been spotted in the wild using various techniques to hide and avoid discovery. The levels of obfuscation are notable for their sheer depth, according to an analysis. Varonis uncovered an initial sampl...

Windows PowerShell - Unsanitized Filename Command Execution Exploit

''' + Credits: John Page aka hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-WINDOWS-POWERSHELL-UNSANITIZED-FILENAME-COMMAND-EXECUTION.txt + ISR: Apparition Security Vendor www.microsoft.com Product Windows PowerShell Windows PowerShell...

Microsoft Windows PowerShell - Unsanitized Filename Command Execution

''' + Credits: John Page aka hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/MICROSOFT-WINDOWS-POWERSHELL-UNSANITIZED-FILENAME-COMMAND-EXECUTION.txt + ISR: Apparition Security Vendor www.microsoft.com Product Windows PowerShell Windows PowerShell...

Binee: Outsmarting Malware with Next-Generation Process Emulation

The Problem with Malware Analysis Threat researchers get thousands of samples of malware every day and, as every researcher knows, it is very difficult to analyze them in a way that allows for intelligent decisions regarding whether a sample’s reputation is good or bad. There are already some qui...

Phishing Attacks Enlist Amazon AWS, Microsoft Azure in Ploys

Recent phishing campaigns have been spotted boosting their anti-detection efforts by using Amazon Web Services to host their landing pages. It’s a sign of a nascent trend towards using public cloud storage, according to researchers. The attackers are also layering on various obfuscation technique...

Brave Software: Link obfuscation bug

Summary: Link preview in the left bottom of Brave Browser will show the link where the user will be redirected after clicking it, but after clicking the link, the affected user will be redirected to other website. Products affected: Latest Version of Brave browser Steps To Reproduce: 1. Open...

Microsoft Windows PowerShell Command Execution Exploit

Microsoft Windows PowerShell Command Execution Exploit + Credits: John Page aka hyp3rlinx Vendor www.microsoft.com Product Windows PowerShell Windows PowerShell is a Windows command-line shell designed especially for system administrators. PowerShell includes an interactive prompt and a scripting...

No summer break for Magecart as web skimming intensifies

This summer, you are more likely to find the cybercriminal groups Magecart client-side rather than poolside. Web skimming, which consists of stealing payment information directly from within the browser, is one of today's top web threats. Magecart, the group behind many of these attacks, gained...

HPSBGN03623 rev. 1 - Exposure of Application Configuration Details - Samsung Mobile Print (Android)

Potential Security Impact Application's configuration details exposed Source: HP, HP Product Security Response Team PSRT Reported by: Akshay Jain Appknox VULNERABILITY SUMMARY A potential security vulnerability caused by incomplete obfuscation of application configuration information. HP has no...

Spring RCE exploit I can’t explain

I’ve just found some variant of Struts exploit that surprised me by obfuscation technique: GET...

RATs and stealers rush through “Heaven’s Gate” with new loader

By Holger Unterbrink and Edmund Brumaghin. Executive summary Malware is constantly finding new ways to avoid detection. This doesn't mean that some will never be detected, but it does allow adversaries to increase the period of time between initial release and detection. Flying under the radar fo...

New Dridex Variant Slips By Anti-Virus Detection

Researchers have spotted a variant of the Dridex banking trojan with new obfuscation capabilities that help it skirt anti-virus detection. While Dridex has been around since 2011, researchers told Threatpost Friday that they recently spotted phishing emails distributing a never-before-seen varian...

GreenFlash Sundown exploit kit expands via large malvertising campaign

Exploit kit activity has been relatively quiet for some time, with the occasional malvertising campaign reminding us that drive-by downloads are still a threat. However, during the past few days we noticed a spike in our telemetry for what appeared to be a new exploit kit. Upon closer inspection ...

Unprotect Project: Classify Malwares Based on Known Evasion Techniques

PenTestIT RSS Feed One of the first steps in learning about a malware is to see if it is evasive in any sense and then proceed accordingly. The Unprotect Project helps you do this easily. It is an open source project in Python that proposes a malware classification techniques based on their evasi...