Tag Kaspersky

YouTube Game Cheats Distribute Arcane Stealer Malware to Russian-Speaking Users

New Malware Targeting Gamers: Arcane Stealer Discovered Recent reports have surfaced regarding a new strain of malware known as Arcane, disseminated through YouTube videos that advertise game cheats. This unique malware, particularly concerning for its sophisticated data collection methods, appears to primarily target Russian-speaking users, signaling a new wave of…

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CERT-UA Reports Cyberattacks on Ukrainian State Systems Utilizing WRECKSTEEL Malware

In a concerning revelation, the Computer Emergency Response Team of Ukraine (CERT-UA) has reported three cyberattacks targeting state administration and critical infrastructure. The objective of these attacks appears to be data theft from sensitive governmental entities. According to CERT-UA, the coordinated campaign utilized compromised email accounts to dispatch phishing emails.…

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Cryptocurrency Mining and Clipper Malware Distributed Through Cracked Software on SourceForge

Recent investigations have uncovered an alarming trend in which cybercriminals are distributing malicious software masquerading as legitimate cracked applications, specifically targeting users through the popular software hosting platform, SourceForge. Among the most concerning payloads identified are cryptocurrency miners and clipper malware disguised as Microsoft Office add-ons. A report from Kaspersky…

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New TCESB Malware Discovered in Active Attacks Targeting ESET Security Scanner

Published: April 9, 2025
Category: Windows Security / Vulnerability

A Chinese-affiliated threat actor known for cyber-attacks in Asia has been seen exploiting a vulnerability in ESET security software to deploy previously unknown malware dubbed TCESB. According to Kaspersky’s recent analysis, “Previously unseen in ToddyCat attacks, [TCESB] is engineered to stealthily execute payloads, bypassing installed protection and monitoring tools.” The ToddyCat threat activity cluster has targeted various entities across Asia, with operations traced back to at least December 2020. In the prior year, a Russian cybersecurity company detailed the group’s use of multiple tools to maintain persistent access and conduct large-scale data harvesting from organizations in the Asia-Pacific region. Kaspersky’s investigation into ToddyCat incidents in early 2024 revealed a suspicious DLL file…

Newly Discovered TCESB Malware Targets ESET Security Software April 09, 2025 Recent cybersecurity developments have illuminated a new malware strain known as TCESB, which is being actively deployed in ongoing attacks. This malware, linked to a Chinese-affiliated threat actor, exploits vulnerabilities in ESET security software. Analysts at Kaspersky have highlighted…

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New TCESB Malware Discovered in Active Attacks Targeting ESET Security Scanner

Published: April 9, 2025
Category: Windows Security / Vulnerability

A Chinese-affiliated threat actor known for cyber-attacks in Asia has been seen exploiting a vulnerability in ESET security software to deploy previously unknown malware dubbed TCESB. According to Kaspersky’s recent analysis, “Previously unseen in ToddyCat attacks, [TCESB] is engineered to stealthily execute payloads, bypassing installed protection and monitoring tools.” The ToddyCat threat activity cluster has targeted various entities across Asia, with operations traced back to at least December 2020. In the prior year, a Russian cybersecurity company detailed the group’s use of multiple tools to maintain persistent access and conduct large-scale data harvesting from organizations in the Asia-Pacific region. Kaspersky’s investigation into ToddyCat incidents in early 2024 revealed a suspicious DLL file…

Lazarus Hacker Group Adapts Tactics, Tools, and Targets in DeathNote Campaign

The North Korean cyber threat group known as Lazarus has been observed changing its strategies and rapidly enhancing its tools within its ongoing DeathNote campaign. While historically focused on the cryptocurrency sector, recent attacks have also expanded to include the automotive, academic, and defense sectors in Eastern Europe and beyond. This shift is seen as a major change in approach. Kaspersky researcher Seongsu Park noted that the group has switched its decoy documents to job descriptions for defense contractors and diplomatic services, marking a strategic pivot that began in April 2020. This campaign is also identified by other names such as Operation Dream Job or NukeSped, with Google-owned Mandiant linking certain activities to this evolving threat.

Lazarus Hacker Group Adapts Strategies in Ongoing DeathNote Campaign April 13, 2023 Cyber Attack / Cyber Threat The Lazarus Group, a North Korean cyber threat actor, has been observed refining its strategies and expanding its targets in an ongoing campaign known as DeathNote. Traditionally focused on the cryptocurrency sector, this…

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Lazarus Hacker Group Adapts Tactics, Tools, and Targets in DeathNote Campaign

The North Korean cyber threat group known as Lazarus has been observed changing its strategies and rapidly enhancing its tools within its ongoing DeathNote campaign. While historically focused on the cryptocurrency sector, recent attacks have also expanded to include the automotive, academic, and defense sectors in Eastern Europe and beyond. This shift is seen as a major change in approach. Kaspersky researcher Seongsu Park noted that the group has switched its decoy documents to job descriptions for defense contractors and diplomatic services, marking a strategic pivot that began in April 2020. This campaign is also identified by other names such as Operation Dream Job or NukeSped, with Google-owned Mandiant linking certain activities to this evolving threat.

New QBot Banking Trojan Campaign Exploits Business Emails to Distribute Malware

April 17, 2023
Financial Security / Malware

Recent findings by Kaspersky reveal a fresh QBot malware campaign that uses compromised business correspondence to deceive victims into installing the malicious software. This ongoing operation, which began on April 4, 2023, is primarily targeting users in Germany, Argentina, Italy, Algeria, Spain, the U.S., Russia, France, the U.K., and Morocco.

QBot, also known as Qakbot or Pinkslipbot, has been active since at least 2007. It not only steals passwords and cookies from web browsers but also acts as a backdoor for delivering next-stage payloads like Cobalt Strike or ransomware. Distributed through phishing campaigns, QBot has undergone continuous updates to incorporate techniques that evade detection, such as anti-VM, anti-debugging, and anti-sandbox measures. Notably, it emerged as the most prevalent malware in March 2023, according to Check Point. In its early distribution, it relied on infected websites and other methods.

New QBot Banking Trojan Campaign Exploits Business Emails to Distribute Malware April 17, 2023 Financial Security / Malware Recent research from Kaspersky has unveiled a new initiative utilizing the QBot banking Trojan to compromise business email communications as a method to disseminate malware. This latest campaign began on April 4,…

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New QBot Banking Trojan Campaign Exploits Business Emails to Distribute Malware

April 17, 2023
Financial Security / Malware

Recent findings by Kaspersky reveal a fresh QBot malware campaign that uses compromised business correspondence to deceive victims into installing the malicious software. This ongoing operation, which began on April 4, 2023, is primarily targeting users in Germany, Argentina, Italy, Algeria, Spain, the U.S., Russia, France, the U.K., and Morocco.

QBot, also known as Qakbot or Pinkslipbot, has been active since at least 2007. It not only steals passwords and cookies from web browsers but also acts as a backdoor for delivering next-stage payloads like Cobalt Strike or ransomware. Distributed through phishing campaigns, QBot has undergone continuous updates to incorporate techniques that evade detection, such as anti-VM, anti-debugging, and anti-sandbox measures. Notably, it emerged as the most prevalent malware in March 2023, according to Check Point. In its early distribution, it relied on infected websites and other methods.

Lazarus Group Leverages Google Chrome Vulnerability to Take Control of Compromised Devices

Oct 24, 2024
Vulnerability / Cyber Attack

The Lazarus Group, a North Korean cyber threat actor, has been linked to the exploitation of a zero-day vulnerability in Google Chrome, allowing them to control infected devices. Cybersecurity firm Kaspersky reported this discovery, which stemmed from a new attack chain identified in May 2024. The attack targeted the personal computer of an unnamed Russian individual using the Manuscrypt backdoor. This involved triggering the zero-day exploit simply by visiting a counterfeit gaming website, “detankzone[.]com,” which aimed at cryptocurrency users. It is believed this campaign began in February 2024. Kaspersky researchers Boris Larin and Vasily Berdnikov noted that the website masqueraded as a professionally designed page for a decentralized finance (DeFi) NFT-based multiplayer online battle arena (MOBA) tank game, enticing users to download a trial version. However, this was merely a façade.

Lazarus Group Exploits Google Chrome Vulnerability to Compromise Targeted Devices On October 24, 2024, cybersecurity experts revealed that the Lazarus Group, a notorious North Korean cyber threat actor, has exploited a recently patched zero-day vulnerability in Google Chrome to gain control over infected devices. The findings were reported by Kaspersky,…

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Lazarus Group Leverages Google Chrome Vulnerability to Take Control of Compromised Devices

Oct 24, 2024
Vulnerability / Cyber Attack

The Lazarus Group, a North Korean cyber threat actor, has been linked to the exploitation of a zero-day vulnerability in Google Chrome, allowing them to control infected devices. Cybersecurity firm Kaspersky reported this discovery, which stemmed from a new attack chain identified in May 2024. The attack targeted the personal computer of an unnamed Russian individual using the Manuscrypt backdoor. This involved triggering the zero-day exploit simply by visiting a counterfeit gaming website, “detankzone[.]com,” which aimed at cryptocurrency users. It is believed this campaign began in February 2024. Kaspersky researchers Boris Larin and Vasily Berdnikov noted that the website masqueraded as a professionally designed page for a decentralized finance (DeFi) NFT-based multiplayer online battle arena (MOBA) tank game, enticing users to download a trial version. However, this was merely a façade.

Stealthy New Ymir Ransomware Utilizes Memory Exploits to Target Corporate Networks

November 12, 2024
Cyber Attack / Cybercrime

Cybersecurity experts have identified a new ransomware variant, Ymir, which was deployed in an attack just two days after systems were compromised by RustyStealer, a type of credential-stealing malware. Kaspersky, a prominent Russian cybersecurity firm, noted that “Ymir ransomware features a distinctive mix of technical capabilities and tactics that bolster its effectiveness.” The attackers employed an unusual combination of memory management functions—malloc, memmove, and memcmp—to execute malicious code directly within system memory. This method diverges from the conventional execution flow found in common ransomware, significantly enhancing its stealth. Kaspersky reported observing this ransomware in an attack on an unnamed Colombian organization, with the threat actors leveraging stolen corporate credentials acquired through RustyStealer to gain unauthorized access.

New Ymir Ransomware Unveiled: A Stealthy Threat to Corporate Networks November 12, 2024 Cyber Attack / Cybercrime Cybersecurity experts have identified a newly emerged ransomware variant dubbed Ymir, which has been linked to a recent cyberattack. This attack occurred just two days after an initial compromise via a stealer malware…

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Stealthy New Ymir Ransomware Utilizes Memory Exploits to Target Corporate Networks

November 12, 2024
Cyber Attack / Cybercrime

Cybersecurity experts have identified a new ransomware variant, Ymir, which was deployed in an attack just two days after systems were compromised by RustyStealer, a type of credential-stealing malware. Kaspersky, a prominent Russian cybersecurity firm, noted that “Ymir ransomware features a distinctive mix of technical capabilities and tactics that bolster its effectiveness.” The attackers employed an unusual combination of memory management functions—malloc, memmove, and memcmp—to execute malicious code directly within system memory. This method diverges from the conventional execution flow found in common ransomware, significantly enhancing its stealth. Kaspersky reported observing this ransomware in an attack on an unnamed Colombian organization, with the threat actors leveraging stolen corporate credentials acquired through RustyStealer to gain unauthorized access.