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A threat actor tracked under the moniker Webworm is taking advantage of bespoke variants of already existing Windows-based remote access trojans to fly under the radar, some of which are said to be in pre-deployment or testing phases. "The group has developed customized versions of three older remote access trojans (RATs), including  Trochilus RAT ,  Gh0st RAT , and  9002 RAT ," the Symantec Threat Hunter team, part of Broadcom Software,  said  in a report shared with The Hacker News. The cybersecurity firm said at least one of the indicators of compromise (IOCs) was used in an attack against an IT service provider operating in multiple Asian countries. It's worth pointing out that all the three backdoors are primarily associated with Chinese threat actors such as Stone Panda (APT10), Aurora Panda (APT17), Emissary Panda (APT27), and Judgement Panda (APT31), among others, although they have been put to use by other hacking groups. Symantec said the Webworm...

The U.S. Treasury Department's Office of Foreign Assets Control (OFAC) on Wednesday announced sweeping sanctions against ten individuals and two entities backed by Iran's Islamic Revolutionary Guard Corps (IRGC) for their involvement in ransomware attacks at least since October 2020. The agency said the cyber activity mounted by the individuals is partially attributable to intrusion sets tracked under the names APT35, Charming Kitten, Nemesis Kitten, Phosphorus, and TunnelVision. "This group has launched extensive campaigns against organizations and officials across the globe, particularly targeting U.S. and Middle Eastern defense, diplomatic, and government personnel, as well as private industries including media, energy, business services, and telecommunications," the Treasury  said . The Nemesis Kitten actor, which is also known as  Cobalt Mirage ,  DEV-0270 , and  UNC2448 , has come under the scanner in recent months for its pattern of ransomware attacks for ...

The operators behind the Lornenz ransomware operation have been observed exploiting a now-patched critical security flaw in Mitel MiVoice Connect to obtain a foothold into target environments for follow-on malicious activities. "Initial malicious activity originated from a Mitel appliance sitting on the network perimeter," researchers from cybersecurity firm Arctic Wolf  said  in a report published this week. "Lorenz exploited  CVE-2022-29499 , a remote code execution vulnerability impacting the Mitel Service Appliance component of MiVoice Connect, to obtain a reverse shell and subsequently used  Chisel  as a tunneling tool to pivot into the environment." Lorenz, like many other ransomware groups, is known for double extortion by exfiltrating data prior to encrypting systems, with the actor targeting small and medium businesses (SMBs) located in the U.S., and to a lesser extent in China and Mexico, since at least February 2021. Calling it an "ever-evolvin...

A Linux variant of a backdoor known as SideWalk was used to target a Hong Kong university in February 2021, underscoring the cross-platform abilities of the implant.  Slovak cybersecurity firm ESET, which detected the malware in the university's network, attributed the backdoor to a nation-state actor dubbed  SparklingGoblin . The unnamed university is said to have been already targeted by the group in May 2020 during the  student protests . "The group continuously targeted this organization over a long period of time, successfully compromising multiple key servers, including a print server, an email server, and a server used to manage student schedules and course registrations," ESET  said  in a report shared with The Hacker News. SparklingGoblin is the name given to a Chinese advanced persistent threat (APT) group with connections to the  Winnti umbrella  (aka APT41, Barium, Earth Baku, or Wicked Panda). It's primarily known for its attacks targ...

Based on the findings of Malwarebytes' Threat Review for 2022, 40 million Windows business computers' threats were detected in 2021. In order to combat and avoid these kinds of attacks, malware analysis is essential. In this article, we will break down the goal of malicious programs' investigation and how to do malware analysis with a sandbox. What is malware analysis?  Malware analysis is a process of studying a malicious sample. During the study, a researcher's goal is to understand a malicious program's type, functions, code, and potential dangers. Receive the information organization needs to respond to the intrusion. Results of analysis that you get: how malware works: if you investigate the code of the program and its algorithm, you will be able to stop it from infecting the whole system. characteristics of the program: improve detection by using data on malware like its family, type, version, etc. what is the goal of malware: trigger the sample's...

Palo Alto Networks Unit 42 has detailed the inner workings of a malware called  OriginLogger , which has been touted as a successor to the widely used information stealer and remote access trojan (RAT) known as  Agent Tesla . A .NET based keylogger and remote access, Agent Tesla has had a long-standing presence in the threat landscape, allowing malicious actors to gain remote access to targeted systems and beacon sensitive information to an actor-controlled domain. Known to be used in the wild since 2014, it's advertised for sale on dark web forums and is generally distributed through malicious spam emails as an attachment. In February 2021, cybersecurity firm Sophos  disclosed two new variants  of the commodity malware (version 2 and 3) that featured capabilities to steal credentials from web browsers, email apps, and VPN clients, as well as use Telegram API for command-and-control. Now according to Unit 42 researcher Jeff White, what has been tagged as Agent ...

Tech giant Microsoft on Tuesday shipped fixes to quash  64 new security flaws  across its software lineup, including one zero-day flaw that has been actively exploited in real-world attacks. Of the 64 bugs, five are rated Critical, 57 are rated Important, one is rated Moderate, and one is rated Low in severity. The patches are in addition to  16 vulnerabilities  that Microsoft addressed in its Chromium-based Edge browser earlier this month. "In terms of CVEs released, this Patch Tuesday may appear on the lighter side in comparison to other months," Bharat Jogi, director of vulnerability and threat research at Qualys, said in a statement shared with The Hacker News. "However, this month hit a sizable milestone for the calendar year, with MSFT having fixed the 1000th CVE of 2022 – likely on track to surpass 2021, which patched 1,200 CVEs in total." The actively exploited vulnerability in question is  CVE-2022-37969  (CVSS score: 7.8), a privilege e...