RSS ze světa hackingu


New Pingback Malware Using ICMP Tunneling to Evade C&C Detection

Researchers on Tuesday disclosed a novel malware that uses a variety of tricks to stay under the radar and evade detection, while stealthily capable of executing arbitrary commands on infected systems. Called 'Pingback,' the Windows malware leverages Internet Control Message Protocol (ICMP) tunneling for covert bot communications, allowing the adversary to utilize ICMP packets to piggyback…

Datum: 4. 5. 2021

How Should the Service Desk Reset Passwords?

Ask the average helpdesk technician what they do all day, and they will probably answer by saying that they reset passwords. Sure, helpdesk technicians do plenty of other things too, but in many organizations, a disproportionate number of helpdesk calls are tied to password resets. On the surface, having a helpdesk technician reset a user’s password probably doesn’t seem like a big deal. After…

Datum: 4. 5. 2021

Critical Patch Out for Month-Old Pulse Secure VPN 0-Day Under Attack

Ivanti, the company behind Pulse Secure VPN appliances, has released a security patch to remediate a critical security vulnerability that was found being actively exploited in the wild by at least two different threat actors. Tracked as CVE-2021-22893 (CVSS score 10), the flaw concerns "multiple use after free" issues in Pulse Connect Secure that could allow a remote unauthenticated attacker to…

Datum: 4. 5. 2021

Apple Releases Urgent Security Patches For Zero-Day Bugs Under Active Attacks

Apple on Monday released security updates for iOS, macOS, and watchOS to address three zero-day flaws and expand patches for a fourth vulnerability that the company said might have been exploited in the wild. The weaknesses all concern WebKit, the browser engine which powers Safari and all third-party web browsers in iOS, allowing an adversary to execute arbitrary code on target…

Datum: 4. 5. 2021

Over 40 Apps With More Than 100 Million Installs Found Leaking AWS Keys

Most mobile app users tend to blindly trust that the apps they download from app stores are safe and secure. But that isn't always the case. To demonstrate the pitfalls and identify vulnerabilities on a large scale, cybersecurity and machine intelligence company CloudSEK recently provided a platform called BeVigil where individuals can search and check app security ratings and other security…

Datum: 3. 5. 2021

A Rust-based Buer Malware Variant Has Been Spotted in the Wild

Cybersecurity researchers on Monday disclosed a new malspam campaign distributing a fresh variant of a malware loader called 'Buer' written in Rust, illustrating how adversaries are constantly honing their malware toolsets to evade analysis. Dubbed "RustyBuer," the malware is distributed via emails masquerading as shipping notices from DHL Support, and is said to have affected no fewer than 200…

Datum: 3. 5. 2021

Researchers Uncover Iranian State-Sponsored Ransomware Operation

Iran has been linked to yet another state-sponsored ransomware operation through a contracting company based in the country, according to new analysis. "Iran's Islamic Revolutionary Guard Corps (IRGC) was operating a state-sponsored ransomware campaign through an Iranian contracting company called 'Emen Net Pasargard' (ENP)," cybersecurity firm Flashpoint said in its findings summarizing three…

Datum: 3. 5. 2021

New Chinese Malware Targeted Russia's Largest Nuclear Submarine Designer

A threat actor believed to be working on behalf of Chinese state-sponsored interests was recently observed targeting a Russia-based defense contractor involved in designing nuclear submarines for the naval arm of the Russian Armed Forces. The phishing attack, which singled out a general director working at the Rubin Design Bureau, leveraged the infamous "Royal Road" Rich Text Format (RTF)…

Datum: 3. 5. 2021

Hackers Exploit SonicWall Zero-Day Bug in FiveHands Ransomware Attacks

An "aggressive" financially motivated threat group tapped into a zero-day flaw in SonicWall VPN appliances prior to it being patched by the company to deploy a new strain of ransomware called FIVEHANDS. The group, tracked by cybersecurity firm Mandiant as UNC2447, took advantage of an "improper SQL command neutralization" flaw in the SSL-VPN SMA100 product (CVE-2021-20016, CVSS score 9.8) that…

Datum: 30. 4. 2021

Microsoft Finds 'BadAlloc' Flaws Affecting Wide-Range of IoT and OT Devices

Microsoft researchers on Thursday disclosed two dozen vulnerabilities affecting a wide range of Internet of Things (IoT) and Operational Technology (OT) devices used in industrial, medical, and enterprise networks that could be abused by adversaries to execute arbitrary code and even cause critical systems to crash. "These remote code execution (RCE) vulnerabilities cover more than 25 CVEs and…

Datum: 30. 4. 2021

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