RSS ze světa hackingu


Chinese Hackers Implant PlugX Variant on Compromised MS Exchange Servers

A Chinese cyberespionage group known for targeting Southeast Asia leveraged flaws in the Microsoft Exchange Server that came to light earlier this March to deploy a previously undocumented variant of a remote access trojan (RAT) on compromised systems. Attributing the intrusions to a threat actor named PKPLUG (aka Mustang Panda and HoneyMyte), Palo Alto Networks' Unit 42 threat intelligence team…

Datum: 28. 7. 2021

Hackers Posed as Aerobics Instructors for Years to Target Aerospace Employees

An Iranian cyberespionage group masqueraded as an aerobics instructor on Facebook in an attempt to infect the machine of an employee of an aerospace defense contractor with malware as part of years-long social engineering and targeted malware campaign. Enterprise security firm Proofpoint attributed the covert operation to a state-aligned threat actor it tracks as TA456, and by the wider…

Datum: 28. 7. 2021

New Bug Could Let Attackers Hijack Zimbra Server by Sending Malicious Email

Cybersecurity researchers have discovered multiple security vulnerabilities in Zimbra email collaboration software that could be potentially exploited to compromise email accounts by sending a malicious message and even achieve a full takeover of the mail server when hosted on a cloud infrastructure. The flaws — tracked as CVE-2021-35208 and CVE-2021-35208 — were discovered and reported in…

Datum: 27. 7. 2021

Several Bugs Found in 3 Open-Source Software Used by Several Businesses

Cybersecurity researchers on Tuesday disclosed nine security vulnerabilities affecting three open-source projects — EspoCRM, Pimcore, and Akaunting — that are widely used by several small to medium businesses and, if successfully exploited, could provide a pathway to more sophisticated attacks. All the security flaws in question, which impact EspoCRM v6.1.6, Pimcore Customer Data Framework…

Datum: 27. 7. 2021

Hackers Turning to 'Exotic' Programming Languages for Malware Development

Threat actors are increasingly shifting to "exotic" programming languages such as Go, Rust, Nim, and Dlang that can better circumvent conventional security protections, evade analysis, and hamper reverse engineering efforts. "Malware authors are known for their ability to adapt and modify their skills and behaviors to take advantage of newer technologies," said Eric Milam, Vice President of…

Datum: 27. 7. 2021

Apple Releases Urgent 0-Day Bug Patch for Mac, iPhone and iPad Devices

Apple on Monday rolled out an urgent security update for iOS, iPadOS, and macOS to address a zero-day flaw that it said may have been actively exploited, making it the thirteenth such vulnerability Apple has patched since the start of this year. The updates, which arrive less than a week after the company released iOS 14.7, iPadOS 14.7, and macOS Big Sur 11.5 to the public, fixes a memory…

Datum: 27. 7. 2021

BIMI: A Visual Take on Email Authentication and Security

There is a saying that goes something like, "Do not judge a book by its cover." Yet, we all know we can not help but do just that - especially when it comes to online security. Logos play a significant role in whether or not we open an email and how we assess the importance of each message. Brand Indicators for Message Identification, or BIMI, aims to make it easier for us to quickly identify…

Datum: 26. 7. 2021

How to Mitigate Microsoft Windows 10, 11 SeriousSAM Vulnerability

Microsoft Windows 10 and Windows 11 users are at risk of a new unpatched vulnerability that was recently disclosed publicly. As we reported last week, the vulnerability — SeriousSAM — allows attackers with low-level permissions to access Windows system files to perform a Pass-the-Hash (and potentially Silver Ticket) attack.  Attackers can exploit this vulnerability to obtain hashed passwords…

Datum: 26. 7. 2021

Microsoft Warns of LemonDuck Malware Targeting Windows and Linux Systems

An infamous cross-platform crypto-mining malware has continued to refine and improve upon its techniques to strike both Windows and Linux operating systems by setting its sights on older vulnerabilities, while simultaneously latching on to a variety of spreading mechanisms to maximize the effectiveness of its campaigns. "LemonDuck, an actively updated and robust malware that's primarily known…

Datum: 26. 7. 2021

New PetitPotam NTLM Relay Attack Lets Hackers Take Over Windows Domains

A newly uncovered security flaw in the Windows operating system can be exploited to coerce remote Windows servers, including Domain Controllers, to authenticate with a malicious destination, thereby allowing an adversary to stage an NTLM relay attack and completely take over a Windows domain. The issue, dubbed "PetitPotam," was discovered by security researcher Gilles Lionel, who shared…

Datum: 26. 7. 2021

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