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SpiderLabs Blog

Attracting more than a half-million annual readers, this is the security community's go-to destination for technical breakdowns of the latest threats, critical vulnerability disclosures and cutting-edge research.

Grandoreiro Banking Malware Resurfaces for Tax Season

Trustwave SpiderLabs in early April observed a Grandoreiro malware campaign targeting bank users from Brazil, Spain, and Mexico. The campaign exploits the tax season in target countries by sending out tax-themed phishing emails.

Interactive Phishing: Using Chatbot-like Web Applications to Harvest Information

The Trustwave SpiderLabs Email Security team identified a phishing campaign pretending to be a missed package from DHL. What’s interesting about this campaign is that clicking on the link leads to a chatbot that discusses the missed package, provides pictures of it, and guides the potential victim through providing their credit card information and user credentials.

PwnFox - An IDOR Hunter's Best Friend

So, what is PwnFox? To put it simply, it’s a BurpPro extension that works with Firefox. It accomplishes two things. First, it helps containerize up to eight (yes, that’s right… eight!) different sessions within one browser and secondly, it organizes all your proxied traffic in Burp BY COLOR!

Trustwave’s Action Response: F5 BIG-IP Vulnerability (CVE-2022-1388)

Trustwave SpiderLabs is tracking a new critical-rated vulnerability (CVE-2022-1388) affecting F5 BIG-IP network devices. Threat actors are reported to be actively exploiting this vulnerability in the wild. F5 disclosed and issued a patch for CVE-2022-1388 on May 4.

Tough Times for Ukrainian Honeypot?

Hackers - both bad and good, government related or private groups - have their hands full every day as never before and compounding the situation is the Russia-Ukraine (UA) war which has sparked a cyber storm.

Trustwave’s Action Response: CVE-2022-22965 and CVE-2022-22963

Trustwave security and engineering teams are actively investigating the vulnerabilities CVE-2022-22965 (also referenced by other vendors at Spring4Shell / SpringShell) and CVE-2022-22963 and potential exploits. We are diligently watching over our clients for exposure and associated attacks and are taking action with approved mitigation efforts.

Cyber Attackers Leverage Russia-Ukraine Conflict in Multiple Spam Campaigns

The Trustwave SpiderLabs email security team has been monitoring the ongoing Russia-Ukraine crisis to ensure that our clients are protected and aware of any imminent threats. This research blog captures some of the phishing email threats we have discovered.

Vidar Malware Launcher Concealed in Help File

Appending a malicious file to an unsuspecting file format is one of the tricks our adversaries use to evade detection. Recently, we came across an interesting email campaign employing this technique to deliver the info stealer Vidar malware.

Dissecting a Phishing Campaign with a Captcha-based URL

In today’s environment, much of the population are doing their bank or financial transactions online and online banking or wire transfers have become a huge necessity. Recently, we received a phishing email that is targeting PayPal accounts.

The Attack of the Chameleon Phishing Page

Recently, we encountered an interesting phishing webpage that caught our interest because it acts like a chameleon by changing and blending its color based on its environment. In addition, the site adapts its background page and logo depending on user input to trick its victims into giving away their email credentials.

A Simple Guide to Getting CVEs Published

This guide will, hopefully, let you skip the headaches and guesswork that we endured learning this process when you try to get a CVE published.

Bypassing MFA: A Pentest Case Study

When a company implements multifactor authentication, the organization is usually confident that it’s using the best system possible. However, not all MFA is built the same and there are times when the MFA solution being implemented is not delivering the protection required.

ServiceNow - Username Enumeration Vulnerability (CVE-2021-45901)

During a recent engagement, Trustwave SpiderLabs discovered a vulnerability (CVE-2021-45901) within ServiceNow (Orlando) which allows for a successful username enumeration by using a wordlist. By using an unauthenticated session and navigating to the password reset form, it is possible to infer a valid username. This is achieved through examination of the HTTP POST response data initially triggered by the password reset web form. This response differs depending on a username's existence.

CVE-2020-0696 - Microsoft Outlook Security Feature Bypass Vulnerability

During an investigation of a malware campaign, I discovered that multiple emails were bypassing a specific email security system. Interestingly, there were no bypass techniques used. Instead, the flood of spear-phishing emails made the email security system allow some of the emails, at which point I began my research on Microsoft Outlook.

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