Fortinet’s FortiGuard Labs captured a phishing campaign that delivers three fileless malware onto a victim’s device. Once executed, they are able to control and steal sensitive information from that device to perform other actions according to the control commands from their server.

In Part I of this analysis, I introduced how these three fileless malware are delivered to the victim’s device via a phishing campaign, and what mechanism it uses to load, deploy, and execute these fileless malware in the target process.…

Read More

Users of WSO2 products are advised to update their respective products and platforms or to apply the temporary mitigation steps immediately.

We observed vulnerability CVE-2022-29464 being exploited in the wild since April, allowing unrestricted file uploads resulting to arbitrary remote code execution (RCE). Disclosed and patched in April, the security gap was ranked Critical at 9.8 and affects a number of WSO2 products.…

Read More

Black Basta Besting Your Network?

first appeared in April 2022. To date, this group has claimed attribution of 29 different victims across multiple industries using a double extortion strategy where the attackers not only execute ransomware but also steal data and threaten to release it publicly if the ransom demands are not met.…

Read More
According to CrowdStrike research, Mirai malware variants compiled for Intel-powered Linux systems double (101%) in Q1 2022 compared to Q1 2021 Mirai malware variants that targeted 32-bit x86 processors increased the most (120% in Q1 2022 vs. Q1 2021) Mirai malware is used to compromise internet-connected devices, amass them into botnets and use their collective power to conduct denial of service attacks Mirai variants continuously evolve to exploit unpatched vulnerabilities to expand their attack surface

Popular for compromising internet-connected devices and conducting distributed denial of service (DDoS) attacks, Mirai malware variants have been known to compromise devices that run on Linux builds ranging from mobile and Internet of Things (IoT) devices to cloud infrastructures. …

Read More

Given the current fluctuations in the energy market and the related rise in prices to consumers, it should be no surprise that threat actors are using lures to exploit the global interest in this issue.

FortiGuard Labs recently discovered an e-mail using this tactic. The message was delivered to a coffee company in Ukraine that was seemingly sent by an oil provider in Saudi Arabia.…

Read More

Summary

Update June 2, 2022:

This Cybersecurity Advisory (CSA) has been updated with additional indicators of compromise (IOCs) and detection signatures, as well as tactics, techniques, and procedures (TTPs) from trusted third parties. 

Update End

The Cybersecurity and Infrastructure Security Agency (CISA) is releasing this CSA to warn organizations that malicious cyber actors, likely advanced persistent threat (APT) actors, are exploiting CVE-2022-22954 and CVE-2022-22960 separately and in combination.…

Read More

Trend Micro’s Managed XDR team addressed a Kingminer botnet attack conducted through an SQL exploit. We discuss our findings and analysis in this report.

We observed malicious activities in a client’s SQL server that flagged a potential exploit in one public-facing device. A quick look at the Trend Micro Vision One™ Workbench showed that a Microsoft SQL server process created an obfuscated PowerShell command.…

Read More

We all know vulnerabilities have a lifecycle. First, they start as closely held secrets, hopefully known to the company producing the vulnerable software. After becoming publically known, there is often a “mad dash” to a public exploit. During this phase, security companies often show their skills by hinting at privately developed exploits first until the exploit is publically known.…

Read More

This post is also available in: 日本語 (Japanese)

Executive Summary

On May 4, 2022, F5 released a security advisory for a remote code execution vulnerability in the iControlREST component of its BIG-IP product tracked in CVE-2022-1388. Threat actors can exploit this vulnerability to bypass authentication and run arbitrary code on unpatched systems.…

Read More

In early December 2021, a new ransomware actor started advertising its services on a Russian underground forum. They presented themselves as ALPHV, a new generation Ransomware-as-a-Service (RaaS) group. Shortly afterwards, they dialed up their activity, infecting numerous corporate victims around the world. The group is also known as BlackCat.…

Read More

SystemBC is a proxy malware that has been used by various attackers for the last few years. While it is recently distributed through SmokeLoader or Emotet, this malware has steadily been used in various ransomware attacks in the past. When an attacker attempts to access a certain address with malicious intent, the system can be used as a passage if the infected system utilizes SystemBC, which acts as a Proxy Bot.…

Read More

We discovered active exploitation of a vulnerability in the Spring Framework designated as CVE-2022-22965 that allows malicious actors to download the Mirai botnet malware.

Trend Micro Threat Research observed active exploitation of the Spring4Shell vulnerability assigned as CVE-2022-22965, which allows malicious actors to weaponize and execute the Mirai botnet malware.…

Read More