Phishing actors start exploiting the Omicron COVID-19 variant

Phishing actors have quickly started to exploit the emergence of the Omicron COVID-19 variant and now use it as a lure in their malicious email campaigns.

Threat actors are quick to adjust to the latest trends and hot topics, and increasing people’s fears is an excellent way to cause people to rush to open an email without first thinking it through.

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Hackers use in-house Zoho ServiceDesk exploit to drop webshells

An advanced persistent threat (APT) group that had been exploiting a flaw in the Zoho ManageEngine ADSelfService Plus software has pivoted to leveraging a different vulnerability in another Zoho product.

The actor has been seen exploiting an unauthenticated remote code execution issue in Zoho ServiceDesk Plus versions 11305 and older, currently tracked as CVE-2021-44077.

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NginRAT – A stealth malware targets e-store hiding on Nginx servers

CronRAT is employed in Magecart attacks against online stores web stores and enables attackers to steal credit card data by deploying online payment skimmers on Linux servers.

While investigating CronRAT infections in North America and Europe the researchers spotted a new malware, dubbed NginRAT, that hides on Nginx servers bypassing security solutions. Like CronRAT, also NginRAT works as a “server-side Magecart,” it injects itself into an Nginx process.

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Colorado energy company loses 25 years of data after cyberattack while still rebuilding network

Colorado’s Delta-Montrose Electric Association (DMEA) is still struggling to recover from a devastating cyberattack last month that took down 90% of its internal systems and caused 25 years of historical data to be lost.

In an update sent to customers this week, the company said it expects to be able to begin accepting payments through its SmartHub platform and other payment kiosks during the week of December 6.

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Password-stealing and keylogging malware is being spread through fake downloads

Cyber criminals are using online adverts for fake versions of popular software to trick users into downloading three forms of malware – including a malicious browser extension with the same capabilites as trojan malware – that provide attackers with usernames and passwords, as well as backdoor remote access to infected Windows PCs.

The attacks, which distribute two forms of seemingly undocumented custom-developed malware, have been detailed by cybersecurity researchers at Cisco Talos who’ve named the campaign ‘magnat’. It appears the campaign has been operating in some capacity since 2018 and the malware has been in continuous development.

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Crooks are selling access to hacked networks. Ransomware gangs are their biggest customers

There’s been a surge in cyber criminals selling access to compromised corporate networks as hackers look to cash in on the demand for vulnerable networks from gangs looking to initiate ransomware attacks.

Researchers at cybersecurity company Group-IB analysed activity on underground forums and said there’s been a sharp increase in the number of offers to sell access to compromised corporate networks, with the number of posts offering access tripling between 2020 and 2021.

Crooks are claiming to offer access to compromised Virtual Private Network (VPN) and Remote Desktop Protocol (RDP) login credentials, as well as web shells, reverse shells, Cobalt Strike penetration testing tools and more.

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Phishing Scam Targets Military Families

Threat researchers at Lookout are helping to take down a phishing campaign targeting members of the United States military and their families.

The scammers behind the long-running campaign impersonate military support organizations and personnel to commit advance fee fraud, stealing sensitive personal and financial information for monetary gain.

“Based on our analysis, it’s clear that the threat actor is looking to steal sensitive data from victims such as their photo identification, bank account information, name, address and phone number,” wrote Lookout’s researchers in a blog post on the scam published today.

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Key Characteristics of Malicious Domains: Report

The newness of top-level domains as well as infrastructure located in certain countries continue to be reliable signs of whether network traffic could be malicious, while the use of self-signed Secure Sockets Layer (SSL) certificates — or those issued by the free Let’s Encrypt service — are not abnormally risky, according to new research.

Internet security service DomainTools, in a new report released today, focused on active domains that exceeded certain thresholds in terms of the size of the infrastructure and found that top-level domains, IP autonomous system numbers, and IP geolocations are consistent indicators of risky content, compared with the average domain.

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