RSS ze světa hackingu


Phony Call Centers Tricking Users Into Installing Ransomware and Data-Stealers

An ongoing malicious campaign that employs phony call centers has been found to trick victims into downloading malware capable of data exfiltration as well as deploying ransomware on infected systems. The attacks — dubbed "BazaCall" — eschew traditional social engineering techniques that rely on rogue URLs and malware-laced documents in favor of a vishing-like method wherein targeted users are…

Datum: 30. 7. 2021

Hackers Exploit Microsoft Browser Bug to Deploy VBA Malware on Targeted PCs

An unidentified threat actor has been exploiting a now-patched zero-day flaw in Internet Explorer browser to deliver a fully-featured VBA-based remote access trojan (RAT) capable of accessing files stored in compromised Windows systems, and downloading and executing malicious payloads as part of an "unusual" campaign. The backdoor is distributed via a decoy document named "Manifest.docx" that…

Datum: 29. 7. 2021

New Ransomware Gangs — Haron and BlackMatter — Emerge on Cybercrime Forums

Two new ransomware-as-service (RaaS) programs have appeared on the threat radar this month, with one group professing to be a successor to DarkSide and REvil, the two infamous ransomware syndicates that went off the grid following major attacks on Colonial Pipeline and Kaseya over the past few months. "The project has incorporated in itself the best features of DarkSide, REvil, and LockBit," the…

Datum: 29. 7. 2021

Best Practices to Thwart Business Email Compromise (BEC) Attacks

Business email compromise (BEC) refers to all types of email attacks that do not have payloads. Although there are numerous types, there are essentially two main mechanisms through which attackers penetrate organizations utilizing BEC techniques, spoofing and account take-over attacks. In a recent study, 71% of organizations acknowledged they had seen a business email compromise (BEC) attack…

Datum: 29. 7. 2021

New Android Malware Uses VNC to Spy and Steal Passwords from Victims

A previously undocumented Android-based remote access trojan (RAT) has been found to use screen recording features to steal sensitive information on the device, including banking credentials, and open the door for on-device fraud. Dubbed "Vultur" due to its use of Virtual Network Computing (VNC)'s remote screen-sharing technology to gain full visibility on targeted users, the mobile malware was…

Datum: 29. 7. 2021

Top 30 Critical Security Vulnerabilities Most Exploited by Hackers

Intelligence agencies in Australia, the U.K., and the U.S. issued a joint advisory on Wednesday detailing the most exploited vulnerabilities in 2020 and 2021, once again demonstrating how threat actors are able to weaponize publicly disclosed flaws to their advantage swiftly. "Cyber actors continue to exploit publicly known—and often dated—software vulnerabilities against broad target sets,…

Datum: 29. 7. 2021

UBEL is the New Oscorp — Android Credential Stealing Malware Active in the Wild

An Android malware that was observed abusing accessibility services in the device to hijack user credentials from European banking applications has morphed into an entirely new botnet as part of a renewed campaign that began in May 2021. Italy's CERT-AGID, in late January, disclosed details about Oscorp, a mobile malware developed to attack multiple financial targets with the goal of stealing…

Datum: 28. 7. 2021

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

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