How Malicious Actors Abuse Native Linux Tools in Attacks

Through our honeypots and telemetry, we were able to observe instances in which malicious actors abused native Linux tools to launch attacks on Linux environments. In this blog entry, we discuss how these utilities were used and provide recommendations on how to minimize their impact...

Researcher Spotlight: How Asheer Malhotra looks for ‘instant gratification’ in threat hunting

The India native has transitioned from a reverse-engineer hobbyist to a public speaker in just a few years By Jon Munshaw. Ninety percent of Asheer Malhotra’s work will never see the light of day. But it’s that 10 percent that keeps him motivated to keep looking for something new. The Talos...

#StopRansomware: Vice Society

CISA, the Federal Bureau of Investigation FBI, and the Multi-State Information Sharing and Analysis Center MS-ISAC have released a joint Cybersecurity Advisory CSA, StopRansomware: Vice Society, to disseminate tactics, techniques, and procedures TTPs and indicators of compromise IOCs associated...

Google Chrome Bug Lets Sites Silently Overwrite System Clipboard Content

A "major" security issue in the Google Chrome web browser, as well as Chromium-based alternatives, could allow malicious web pages to automatically overwrite clipboard content without requiring any user consent or interaction by simply visiting them. The clipboard poisoning attack is said to have...

Chromium browsers can write to the system clipboard without your permission

If you are a user of Google Chrome or any other Chromium-based web browser, then websites may push anything they want to the operating system's clipboard without your permission or any user interaction. This means that by simply visiting a website, the data on your clipboard may be overwritten...

Critical Vulnerability Discovered in Atlassian Bitbucket Server and Data Center

Atlassian has rolled out fixes for a critical security flaw in Bitbucket Server and Data Center that could lead to the execution of malicious code on vulnerable installations. Tracked as CVE-2022-36804 CVSS score: 9.9, the issue has been characterized as a command injection vulnerability in...

Threat Source newsletter (Aug. 25, 2022) — We're still not talking about Ukraine enough

By Jon Munshaw. Welcome to this week’s edition of the Threat Source newsletter. Russia’s invasion of Ukraine was once the most talked about story in the world. Six months into the conflict, modern attention spans have moved on to other news stories. But Ukraine Independence Day yesterday should...

Grandoreiro Banking Trojan Attacks Industries in Spanish-Speaking Countries

Threat Level Attack Report For a detailed advisory, download the pdf file here Summary Grandoreiro banking trojan is a campaign that has been active since at least 2016 and targets a variety of businesses in Mexico and Spain, including automotive, chemical production, and others. Threat actors...

Crypto Miners Using Tox P2P Messenger as Command and Control Server

Threat actors have begun to use the Tox peer-to-peer instant messaging service as a command-and-control method, marking a shift from its earlier role as a contact method for ransomware negotiations. The findings from Uptycs, which analyzed an Executable and Linkable Format ELF artifact "72client"...

Looking for the ‘Sliver’ lining: Hunting for emerging command-and-control frameworks

Microsoft has observed the Sliver command-and-control C2 framework now being adopted and integrated in intrusion campaigns by nation-state threat actors, cybercrime groups directly supporting ransomware and extortion, and other threat actors to evade detection. We’ve seen these actors use Sliver...

Looking for the ‘Sliver’ lining: Hunting for emerging command-and-control frameworks

Microsoft has observed the Sliver command-and-control C2 framework now being adopted and integrated in intrusion campaigns by nation-state threat actors, cybercrime groups directly supporting ransomware and extortion, and other threat actors to evade detection. We’ve seen these actors use Sliver...

Demystifying Qbot Malware

Demystifying Qbot Malware By Adithya Chandra · August 24, 2022 This blog was also written by Sushant Kumar Arya Executive summary The Trellix SecOps Team has observed an uptick in the Qbot malware infections in recent months. Qbot has been an active threat for over 14 years and continues to evolv...

The Rise of Data Exfiltration and Why It Is a Greater Risk Than Ransomware

Ransomware is the de facto threat organizations have faced over the past few years. Threat actors were making easy money by exploiting the high valuation of cryptocurrencies and their victims' lack of adequate preparation. Think about bad security policies, untested backups, patch management...

Network Access for Sale: Protect Your Organization Against This Growing Threat

Vulnerable network access points are a potential gold mine for threat actors who, once inside, can exploit them persistently. Many cybercriminals are not only interested in obtaining personal information but also seek corporate information that could be sold to the highest bidder. Infiltrating...

Ukraine war spotlights agriculture sector's vulnerability to cyber attack

By Joe Marshall. The war in Ukraine has caused massive problems for global food supplies, underscoring the high impact of disruptive events to agriculture entities and related organizations. The challenges to the Ukrainian agriculture sector imposed by the war--and global ripple effects--have bee...

Hackers Using Bumblebee Loader to Compromise Active Directory Services

The malware loader known as Bumblebee is being increasingly co-opted by threat actors associated with BazarLoader, TrickBot, and IcedID in their campaigns to breach target networks for post-exploitation activities. "Bumblebee operators conduct intensive reconnaissance activities and redirect the...

Apple Releases Security Updates to Patch Two New Zero-Day Vulnerabilities

Apple on Wednesday released security updates for iOS, iPadOS, and macOS platforms to remediate two zero-day vulnerabilities previously exploited by threat actors to compromise its devices. The list of issues is below - CVE-2022-32893 - An out-of-bounds write issue in WebKit which could lead to th...

Titan Anti-spam & Security < 7.3.1 - Protection Bypass due to IP Spoofing

The plugin does not properly checks HTTP headers in order to validate the origin IP address, allowing threat actors to bypass it's block feature by spoofing the headers. PoC The function wantispampgetip is vulnerable to IP spoofing because of the general usage of $SERVER'HTTPXFORWARDEDFOR' curl -...

Threat Actors Exploiting Multiple Vulnerabilities Against Zimbra Collaboration Suite

CISA and the Multi-State Information Sharing & Analysis Center MS-ISAC have released a joint Cybersecurity Advisory CSA in response to active exploitation of multiple vulnerabilities against Zimbra Collaboration Suite ZCS, an enterprise cloud-hosted collaboration software and email platform. CISA...

eventsource: Exposure of Sensitive Information

A flaw was found in the EventSource NPM Package. The description from the source states the following message: "Exposure of Sensitive Information to an Unauthorized Actor." This flaw allows an attacker to steal the user's credentials and then use the credentials to access the legitimate website...