RSS ze světa hackingu


Researchers Spotted Malware Written in Nim Programming Language

Cybersecurity researchers have unwrapped an "interesting email campaign" undertaken by a threat actor that has taken to distributing a new malware written in Nim programming language. Dubbed "NimzaLoader" by Proofpoint researchers, the development marks one of the rare instances of Nim malware discovered in the threat landscape. "Malware developers may choose to use a rare programming language…

Datum: 12. 3. 2021

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 the latest reports, cybercriminals are leveraging the heavily exploited ProxyLogon Exchange Server…

Datum: 12. 3. 2021

New Browser Attack Allows Tracking Users Online With JavaScript Disabled

Researchers have discovered a new side-channel that they say can be reliably exploited to leak information from web browsers that could then be leveraged to track users even when JavaScript is completely disabled. "This is a side-channel attack which doesn't require any JavaScript to run," the researchers said. "This means script blockers cannot stop it. The attacks work even if you strip out…

Datum: 12. 3. 2021

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 assess that adversaries could exploit these vulnerabilities to compromise networks, steal…

Datum: 11. 3. 2021

Fixing the Weakest Link — The Passwords — in Cybersecurity Today

Password security has long been an issue for businesses and their cybersecurity standards. Account passwords are often the weakest link in the overall security posture for many organizations. Many companies have used Microsoft's default password policies for decades. While these can be customized, businesses often accept the default values for their organization. The Windows default password…

Datum: 11. 3. 2021

Critical Pre-Auth RCE Flaw Found in F5 Big-IP Platform — Patch ASAP!

Application security company F5 Networks on Wednesday published an advisory warning of four critical vulnerabilities impacting multiple products that could result in a denial of service (DoS) attack and even unauthenticated remote code execution on target networks. The patches concern a total of seven related flaws (from CVE-2021-22986 through CVE-2021-22992), two of which were discovered and…

Datum: 11. 3. 2021

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 malware and those previously associated with the Winnti Umbrella (or Axiom) threat group such as PWNLNX,…

Datum: 10. 3. 2021

FIN8 Hackers Return With More Powerful Version of BADHATCH PoS Malware

Threat actors known for keeping a low profile do so by ceasing operations for prolonged periods in between to evade attracting any attention as well as constantly refining their toolsets to fly below the radar of many detection technologies. One such group is FIN8, a financially motivated threat actor that's back in action after a year-and-a-half hiatus with a powerful version of a backdoor with…

Datum: 10. 3. 2021

Microsoft Issues Security Patches for 82 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, and 75 are listed as Important in severity, out of which two of the bugs are described as publicly…

Datum: 10. 3. 2021

9 Android Apps On Google Play Caught Distributing AlienBot Banker and MRAT Malware

Cybersecurity researchers have discovered a new malware dropper contained in as many as 9 Android apps distributed via Google Play Store that deploys a second stage malware capable of gaining intrusive access to the financial accounts of victims as well as full control of their devices. "This dropper, dubbed Clast82, utilizes a series of techniques to avoid detection by Google Play Protect…

Datum: 9. 3. 2021

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