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Executive SummaryOn March 4, 2019, one of the most well-known keyloggers used by criminals, called Agent Tesla, closed up shop due to legal troubles. In the announcement message posted on the Agent Tesla Discord server, the keylogger’s developers suggested people switch over to a new keylogger: “If you want to see a powerful software like Agent Tesla, we would like to suggest you OriginLogger.…
Secureworks® Counter Threat Unit™ (CTU) analysis of a June 2022 ransomware incident revealed details about Iranian COBALT MIRAGE threat group operations. Despite CTU™ researchers publicly disclosing COBALT MIRAGE tactics, techniques, and procedures (TTPs) in May 2022, the threat actors continue to demonstrate many of the same behaviors.…
This blog entry details how Trend Micro Cloud One™ – Workload Security and Trend Micro Vision One™ effectively detected and blocked the abuse of the CVE-2020-14882 WebLogic vulnerability in affected endpoints.
We have recently observed malicious actors exploiting both recently disclosed and older Oracle WebLogic Server vulnerabilities to deliver cryptocurrency-mining malware.…
a well-known technique that involves attackers placing a malicious DLL in a directory where a legitimate DLL is expected to be found. The attacker then runs the legitimate application themselves (having installed it themselves in most cases). The legitimate application then loads and executes the payload.…
The Arctic Wolf Labs team recently investigated a Lorenz ransomware intrusion, which leveraged a Mitel MiVoice VoIP appliance vulnerability (CVE-2022-29499) for initial access and Microsoft’s BitLocker Drive Encryption for data encryption.…
ESET researchers have discovered a Linux variant of the SideWalk backdoor, one of the multiple custom implants used by the SparklingGoblin APT group. This variant was deployed against a Hong Kong university in February 2021, the same university that had already been targeted by SparklingGoblin during the student protests in May 2020.…
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Executive SummaryThere is a constant debate between usability and security in the software world. Many third-party programs can make their users’ lives easier and save them time by storing their credentials. However, as it turns out, this convenience often comes at the price of poor security, causing the risk of password theft.…
Found in Environments Protected By: Microsoft
By Andy Mann and Dylan Main, Cofense Phishing Defense Center
Analysts at the Cofense Phishing Defense Center (PDC) have recently analyzed an email asking users to download a “Proof of Payment” as well as other documents. While it is important to never click on the link(s) or download the attachment(s) of any suspicious email, if the recipient interacts with the link, it downloaded the malware Lampion.…
In this intrusion from May 2022, we observed a domain-wide compromise that started from a malware ridden Excel document containing the never-dying malware, Emotet.
The post-exploitation started very soon after the initial compromise. The threat actors began enumerating the network once Emotet deployed a Cobalt Strike beacon on the beachhead host.…
The Cybereason Global Security Operations Center (GSOC) Team issues Threat Analysis Reports to inform on impacting threats. The Threat Analysis Reports investigate these threats and provide practical recommendations for protecting against them.…
During our routine threat-hunting exercise, Cyble Research & Intelligence Labs (CRIL) came across a Twitter post wherein a researcher mentioned an interesting infection chain of the Bumblebee loader malware being distributed via spam campaigns.
Bumblebee is a replacement for the BazarLoader malware, which acts as a downloader and delivers known attack frameworks and open-source tools such as Cobalt Strike, Shellcode, Sliver, Meterpreter, etc.…
A ransomware victim called in the BlackBerry Incident Response (IR) team during this year’s 4th of July holiday weekend. We quickly realized we were investigating an attack by a previously unknown group, calling themselves “MONTI.” They encrypted nearly 20 user hosts along with a multi-host VMware ESXi cluster that brought down over 20 servers.…
By Aleksandar Milenkoski & Jim Walter
We observe a new trend on the ransomware scene – intermittent encryption, or partial encryption of victims’ files. This encryption method helps ransomware operators to evade detection systems and encrypt victims’ files faster. We observe that ransomware developers are increasingly adopting the feature and intensively advertising intermittent encryption to attract buyers or affiliates.…
Beginning with macOS 10.12 (Sierra), Apple introduced a key change to how logging was done on their systems. This new logging system replaced common Unix logs with macOS Unified Logs. These logs can provide forensic investigators a valuable artifact to aid in investigating macOS systems or other Apple devices.…
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Executive SummaryIn early August, Unit 42 researchers discovered attacks leveraging several vulnerabilities in devices made by D-Link, a company that specializes in network and connectivity products. The vulnerabilities exploited include:
CVE-2015-2051: D-Link HNAP SOAPAction Header Command Execution Vulnerability CVE-2018-6530: D-Link SOAP Interface Remote Code Execution Vulnerability CVE-2022-26258: D-Link Remote Command Execution Vulnerability CVE-2022-28958: D-Link Remote Command Execution VulnerabilityIf the devices are compromised, they will be fully controlled by attackers, who could utilize those devices to conduct further attacks such as distributed denial-of-service (DDoS) attacks.…
Summary: ThreatLabz observed an update to the Ares banking trojan that introduces a domain generation algorithm (DGA), which mirrors the Qakbot DGA. Based on analyzing the malware code, there does not appear to be a direct link between these two malware families. The Ares DGA may be an effort for the threat actor to maximize the lifetime of an infection, which provides more opportunities for monetizing compromised systems through attacks such as wire fraud and ransomware.…