The leap of a Cycldek-related threat actor

Introduction In the nebula of Chinese-speaking threat actors, it is quite common to see tools and methodologies being shared. One such example of this is the infamous "DLL side-loading triad": a legitimate executable, a malicious DLL to be sideloaded by it, and an encoded payload, generally dropp...

FBI-CISA Joint Advisory on Exploitation of Fortinet FortiOS Vulnerabilities

The Federal Bureau of Investigation FBI and CISA have released a Joint Cybersecurity Advisory CSA to warn users and administrators of the likelihood that advanced persistent threat APT actors are actively exploiting known Fortinet FortiOS vulnerabilities CVE-2018-13379, CVE-2020-12812, and...

Closing the technical gap with resiliency pen testing

Organizations across all industries are watching and weighing the real impact and cost of security breaches as they look to budget security spending for 2021. While remote operations are becoming the norm, threat actors have no intention of slowing down their efforts. Instead, they are taking ful...

Linux Distribution Coverage Extended Across the VMware Carbon Black Cloud

In 2020, a record 56 new Linux malware families were discovered. We are now seeing this trend continue into the new year with the latest discovery of RedXOR, believed to be formulated by Chinese nation-state actors targeting RedHat Enterprise Linux RHEL. With organizations hyper-accelerating thei...

Analyzing attacks taking advantage of the Exchange Server vulnerabilities

Microsoft continues to monitor and investigate attacks exploiting the recent on-premises Exchange Server vulnerabilities. These attacks are now performed by multiple threat actors ranging from financially motivated cybercriminals to state-sponsored groups. To help customers who are not able to...

CopperStealer Malware Targets Facebook and Instagram Business Accounts

A malware that until now has gone undocumented has been quietly hijacking online accounts of advertisers and users of Facebook, Apple, Amazon, Google and other web giants since July 2019 and then using them for nefarious activity, researchers have found. Dubbed CopperStealer, the malware acts...

Fiserv Forgets to Buy Domain It Used as System Default

Fiserv, a multi-billion-dollar cybersecurity tech provider for financial institutions, forgot to buy the domain used as a default in their systems’ email communications, according to a report. The blunder could have exposed its clients’ user information to anyone with a few bucks to buy the domai...

Trojanized Xcode Project Slips MacOS Malware to Apple Developers

Cybercriminals are targeting Apple developers with a trojanized Xcode project, which once launched installs a backdoor that has spying and data exfiltration capabilities. Xcode is comprised of a suite of free, open software development tools developed by Apple for creating software for macOS, iOS...

Security Researcher Hides ZIP, MP3 Files Inside PNG Files on Twitter

A security researcher has discovered a novel steganography technique for hiding data inside a Portable Network Graphics .PNG image file posted on Twitter, a tactic that could be exploited by threat actors to hide malicious activity. Researcher David Buchanan heralded his discovery on Twitter...

Fighting Back in 2021: 4 Best Practices for Security Teams

“Attacks these days don’t have a natural beginning or ending. For an adversary, every attack is an opportunity to learn something that can then be used against additional organizations.” -- Greg Foss, Senior Cybersecurity Strategist, VMware Security Business Unit. Attackers versus defenders will...

Hackers Are Targeting Microsoft Exchange Servers With Ransomware

It didn't take long. Intelligence agencies and cybersecurity researchers had been warning that unpatched Exchange Servers could open the pathway for ransomware infections in the wake of swift escalation of the attacks since last week. Now it appears that threat actors have caught up. According to...

ProxyLogon PoC Exploit Released; Likely to Fuel More Disruptive Cyber Attacks

The U.S. Cybersecurity and Infrastructure Security Agency CISA and the Federal Bureau of Investigation FBI on Wednesday issued a joint advisory warning of active exploitation of vulnerabilities in Microsoft Exchange on-premises products by nation-state actors and cybercriminals. "CISA and FBI...

Researchers Unveil New Linux Malware Linked to Chinese Hackers

Cybersecurity researchers on Wednesday shed light on a new sophisticated backdoor targeting Linux endpoints and servers that's believed to be the work of Chinese nation-state actors. Dubbed "RedXOR" by Intezer, the backdoor masquerades as a polkit daemon, with similarities found between the malwa...

Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks

Microsoft plugged as many as 89 security flaws as part of its monthly Patch Tuesday updates released today, including fixes for an actively exploited zero-day in Internet Explorer that could permit an attacker to run arbitrary code on target machines. Of these flaws, 14 are listed as Critical, an...

Microsoft Exchange attacks cause panic as criminals go shell collecting

Only last week we posted a blog about multiple zero-day exploits being used to attack on-premises versions of Microsoft Exchange Server in limited and targeted attacks. Seeing how this disclosure came with a patch being available, under normal circumstances you would see some companies update...

Microsoft Exchange Hackers Also Breached European Banking Authority

The European Banking Authority EBA on Sunday said it had been a victim of a cyberattack targeting its Microsoft Exchange Servers, forcing it to temporarily take its email systems offline as a precautionary measure. "As the vulnerability is related to the EBA's email servers, access to personal da...

CVE-2021-21361 Sensitive information disclosure via log in com.bmuschko:gradle-vagrant-plugin

The com.bmuschko:gradle-vagrant-plugin Gradle plugin contains an information disclosure vulnerability due to the logging of the system environment variables. When this Gradle plugin is executed in public CI/CD, this can lead to sensitive credentials being exposed to malicious actors. This is fixe...

Fake Google reCAPTCHA Phishing Attack Swipes Office 365 Passwords

Microsoft users are being targeted with thousands of phishing emails, in an ongoing attack aiming to steal their Office 365 credentials. The attackers add an air of legitimacy to the campaign by leveraging a fake Google reCAPTCHA system and top-level domain landing pages that include the logos of...

Microsoft Exchange Cyber Attack — What Do We Know So Far?

Microsoft on Friday warned of active attacks exploiting unpatched Exchange Servers carried out by multiple threat actors, as the hacking campaign is believed to have infected tens of thousands of businesses, government entities in the U.S., Asia, and Europe. The company said "it continues to see...

Microsoft Exchange Cyber Attack — What Do We Know So Far?

Microsoft on Friday warned of active attacks exploiting unpatched Exchange Servers carried out by multiple threat actors, as the hacking campaign is believed to have infected tens of thousands of businesses, government entities in the U.S., Asia, and Europe. The company said "it continues to see...