exploits & vulnerabilities

Update Now PaperCut Vulnerability CVE-2023-27350 Under Active Exploitation

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Update Now PaperCut Vulnerability CVE-2023-27350 Under Active Exploitation

Update Now PaperCut Vulnerability CVE-2023-27350 Under Active Exploitation Exploits & Vulnerabilities Two vulnerabilities in PaperCut have been found, and one of them is being actively exploited in the wild. This blog entry provides a summary of the vulnerabilities, and includes security guidance for IT and SOC professionals. By: Trend Micro April 26, 2023 Read time:  ( words) Updated on April 26, 2023, 4:12 a.m. EDT where we added details on an observed instance through Trend…

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Unpacking the Structure of Modern Cybercrime Organizations

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Unpacking the Structure of Modern Cybercrime Organizations

The last 20 years have seen the cyberthreat landscape transform markedly: From an era of cyberattacks with damaging payloads, the cybercrime space has evolved to one where malicious actors have organized themselves into groups, mainly driven by financial gain. Consequently, organizations now contend with a new breed of cybercriminals fiercely competing among themselves to claim a bigger stake in a highly lucrative market. Given present circumstances, malicious actors have organized themselves in ways that show…

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S4x23 Review Part 4: Cybersecurity for Industrial IoT

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S4x23 Review Part 4: Cybersecurity for Industrial IoT

Bellotti said first that we should start with the realization that legacy technologies are successful technologies. Legacy technologies remain because they are usable and important. They are the foundation for other systems therefore it has a significant impact when they are changed. But people believe in some myths of modernization. First, the technology is regarded as old. It doesn’t matter if the technology is new or old. For example, Python is older than Java, and…

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Azure Serverless Security Risks Exposed by New Study

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Azure Serverless Security Risks Exposed by New Study

Serverless architectures are increasingly popular, as the cloud provider does most of the heavy lifting, allowing developers to focus on building and running their apps. But this popularity has attracted the scrutiny of threat actors. Although serverless environments have a relatively reduced attack surface, with certain responsibilities shifted to the cloud provider (CSP), users must be careful not to introduce extra risk. This could happen if they write insecure code, misconfigure assets or fail to…

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Earth Preta’s Cyberespionage Campaign Hits Over 200

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Earth Preta’s Cyberespionage Campaign Hits Over 200

This mix of traditional intelligence trade craft and cyber techniques could mean that these groups have access to advanced resources and support from nation states, since such techniques are not typically available to independent hackers. Moreover, this approach could signify the growing convergence of cyber- and physical security as cyberattacks continue to move beyond digital systems and into the physical world. Operation groups While this is not a comprehensive list, we summarize and attribute the…

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Patch CVE-2023-23397 Immediately: What You Need To Know and Do

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Patch CVE-2023-23397 Immediately: What You Need To Know and Do

How is CVE-2023-23397 exploited? The attacker sends a message to the victim with an extended Message Application Program Interface (MAPI) property with a Universal Naming Convention (UNC) path to a remote attacker-controlled Server Message Block (SMB, via TCP 445). Share-hosted on a server controlled by the attacker, the vulnerability is exploited whether the recipient has seen the message or not. The attacker remotely sends a malicious calendar invite represented by .msg — the message format…

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Pwn2Own Vancouver 2023 to Put Tesla to the Test

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Pwn2Own Vancouver 2023 to Put Tesla to the Test

At Trend Micro, we’ve always said that cybersecurity is a team sport. But what happens when you put those teams in competition with each other? We believe you create the conditions in which the world’s best hackers thrive. And ultimately, you make the connected world safer in the process. That’s the philosophy of our Zero Day Initiative’s Pwn2Own competition. For the past 15+ years, teams from across the globe have battled each other for big…

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Iron Tiger’s SysUpdate Reappears, Adds Linux Targeting

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Iron Tiger’s SysUpdate Reappears, Adds Linux Targeting

The persistence is ensured by copying a script similarly named as the current filename to the /usr/lib/systemd/system/ directory, and creating a symlink to this file in the /etc/ystem/system/multi-user.target.wants/ directory. Thus, this method only works if the current process has root privileges. The content of the script is: [Unit]Description=xxx[Service]Type=forkingExecStart=<path to current file> -xExecStop=/usr/bin/id[Install]WantedBy=multi-user.target After running the code dependent on the parameters, if the operator has not chosen a GUID with the “-f” parameter, the malware generates…

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Invitation to a Secret Event: Uncovering Earth Yako’s Campaigns

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Invitation to a Secret Event: Uncovering Earth Yako’s Campaigns

Technical perspectives Based on the arsenals and TTPs, we believe Earth Yako may be related to a number of existing groups. However, since we could only observe partial technical overlaps between Earth Yako and the following groups, we note that this is not our final attribution. We found the overlaps similar with the following groups: 1.      Darkhotel Darkhotel (a.k.a. DUBNIUM) is a threat actor observed to frequently target Japanese organizations in the past. Earth Yako’s…

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Attacking The Supply Chain: Developer

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Attacking The Supply Chain: Developer

In 2021, we published an entry identifying the weak parts of the supply chain security. In the face of the surge in documented attacks, the entry gave a summarized overview of how malicious actors found gaps to abuse and take advantage of for possible gains and disruptions. In this entry, we focus on one specific part of the supply chain: the developers themselves. To find a suitable attack model focusing on the developer, we must…

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