IcedID Brings ScreenConnect and CSharp Streamer to ALPHV Ransomware Deployment – The DFIR Report
Key Takeaways In October 2023, we observed an intrusion that began with a spam campaign, distributing a forked IcedID loader. The threat actor used Impacket’s wmiexec and RDP to install Scree…
Snowflake at centre of world’s largest data breach
Cloud AI Data platform Snowflake are having a bad month. Due to teenager threat actors and cybersecurity of its own customers… and its own cybersecurity, too, in terms of optics. There are several large data breaches playing out in the media currently. For example, Ticketmaster owner Live Nation filed an 8-K with the SEC for potentially the largest data breach ever, claimed to be 560 million customers.
I don’t think it’s an exaggeration to predict that artificial intelligence will affect every aspect of our society. Not by doing new things. But mostly by doing things that are already being done by humans, perfectly competently. Replacing humans with AIs isn’t necessarily interesting. But when an AI takes over a human task, the task changes.
The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader, XMRig CoinMiner installed through the former, and DDoS IRC Bot, developed with Perl.
On May 10, 2022, Zimbra released versions 9.0.0 patch 24 and 8.8.15 patch 31 to address multiple vulnerabilities in Zimbra Collaboration Suite, including CVE-2…
BRATA is evolving into an Advanced Persistent Threat
Here we go with another episode about our (not so) old friend, BRATA. In almost one year, threat actors (TAs) have further improved the capabilities of this malware. In our previous blog post [1] we defined three main BRATA variants, which appeared during two different waves detected by our telemetries at the very end of 2021. However, during the last months we have observed a change in the attack pattern commonly used.
ASyncRat surpasses Dridex, TrickBot and Emotet to become dominant email threat
Earlier this year Malwarebytes released its 2022 Threat Review, a review of the most important threats and cybersecurity trends of 2021, and what they could mean for 2022. Among other things it covers the year’s alarming rebound in malware detections, and a significant shift in the balance of email threats.
Online security is extremely important for people in Ukraine and the surrounding region right now. Government agencies, independent newspapers and public service providers need it to function and individuals need to communicate safely. Google’s Threat Analysis Group (TAG) has been working around the clock, focusing on the safety and security of our users and the platforms that help them access and share important information.
Gather round, gather round - it’s time for another blogpost tearing open an SSLVPN appliance and laying bare a recent in-the-wild exploited bug. This time, it is Check Point who is the focus of our penetrative gaze. Check Point, for those unaware, is the vendor responsible for the 'CloudGuard Network Security' appliance, yet another device claiming to be secure and hardened. Their slogan - "you deserve the best security" - implies they are a company you can trust with the security of your network. A bold claim.
CVE-2024-23108: Fortinet FortiSIEM 2nd Order Command Injection Deep-Dive
CVE-2024-23108 Fortinet FortiSIEM Command Injection Deep-Dive and Indicators of Compromise. This blog details a command injection vulnerability which allows an unauthenticated attacker to access the FortiSIEM server as root to execute arbitrary commands.
PCTattletale leaks victims' screen recordings to entire Internet
PCTattletale is a simple stalkerware app. Rather than the sophisticated monitoring of many similarly insecure competitors it simply asks for permission to record the targeted device (Android and Windows are supported) on infection. Afterward the observer can log in to an online portal and activate recording, at which point a screen capture is taken on the device and played on the target's browser.
To the Moon and back(doors): Lunar landing in diplomatic missions
ESET researchers provide technical analysis of the Lunar toolset, likely used by the Turla APT group, that infiltrated a European ministry of foreign affairs
Leveraging DNS Tunneling for Tracking and Scanning
This article presents a case study on new applications of domain name system (DNS) tunneling we have found in the wild. These techniques expand beyond DNS tunneling only for command and control (C2) and virtual private network (VPN) purposes. Malicious actors occasionally employ DNS tunneling as a covert communications channel, because it can bypass conventional network firewalls. This allows C2 traffic and data exfiltration that can remain hidden from some traditional detection methods.
Analysis of TargetCompany's Attacks Against MS-SQL Servers (Mallox, BlueSky Ransomware)
While monitoring attacks targeting MS-SQL servers, AhnLab SEcurity intelligence Center (ASEC) recently identified cases of the TargetCompany ransomware group installing the Mallox ransomware. The TargetCompany ransomware group primarily targets improperly managed MS-SQL servers to install the Mallox ransomware. While these attacks have been ongoing for several years, here we will outline the correlation between the newly identified malware and previous attack cases involving the distribution of the Tor2Mine CoinMiner and BlueSky ransomware.
Unveiling the depths of residential proxies providers
Analysts from Sekoia.io and Orange Cyberdefense delve into the phenomenon of RESIP, explore the actual market landscape, which is composed of multiple shady providers, and explain how cyber threat actors abuse or even directly provide such services.
Kapeka: A novel backdoor spotted in Eastern Europe
This report provides an in-depth technical analysis of the backdoor and its capabilities, and analyzes the connection between Kapeka and Sandworm group. The purpose of this report is to raise awareness amongst businesses, governments, and the broader security community. WithSecure has engaged governments and select customers with advanced copies of this report. In addition to the report, we are releasing several artifacts developed as a result of our research, including a registry-based & hardcoded configuration extractor, a script to decrypt and emulate the backdoor’s network communication, and as might be expected, a list of indicators of compromise, YARA rules, and MITRE ATT&CK mapping
Security Brief: TA547 Targets German Organizations with Rhadamanthys Stealer
What happened Proofpoint identified TA547 targeting German organizations with an email campaign delivering Rhadamanthys malware. This is the first time researchers observed TA547 use Rhadamanthys,...
Palo Alto - Putting The Protecc In GlobalProtect (CVE-2024-3400)
Welcome to April 2024, again. We’re back, again. Over the weekend, we were all greeted by now-familiar news—a nation-state was exploiting a “sophisticated” vulnerability for full compromise in yet another enterprise-grade SSLVPN device. We’ve seen all the commentary around the certification process of these devices for certain .GOVs - we’re not here to comment on that, but sounds humorous.
From Social Engineering to DMARC Abuse: TA427’s Art of Information Gathering | Proofpoint US
Key takeaways TA427 regularly engages in benign conversation starter campaigns to establish contact with targets for long-term exchanges of information on topics of strategic importance to the No...
The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader, XMRig CoinMiner installed through the former, and DDoS IRC Bot, developed with Perl.
On May 10, 2022, Zimbra released versions 9.0.0 patch 24 and 8.8.15 patch 31 to address multiple vulnerabilities in Zimbra Collaboration Suite, including CVE-2…
BRATA is evolving into an Advanced Persistent Threat
Here we go with another episode about our (not so) old friend, BRATA. In almost one year, threat actors (TAs) have further improved the capabilities of this malware. In our previous blog post [1] we defined three main BRATA variants, which appeared during two different waves detected by our telemetries at the very end of 2021. However, during the last months we have observed a change in the attack pattern commonly used.
ASyncRat surpasses Dridex, TrickBot and Emotet to become dominant email threat
Earlier this year Malwarebytes released its 2022 Threat Review, a review of the most important threats and cybersecurity trends of 2021, and what they could mean for 2022. Among other things it covers the year’s alarming rebound in malware detections, and a significant shift in the balance of email threats.
Online security is extremely important for people in Ukraine and the surrounding region right now. Government agencies, independent newspapers and public service providers need it to function and individuals need to communicate safely. Google’s Threat Analysis Group (TAG) has been working around the clock, focusing on the safety and security of our users and the platforms that help them access and share important information.
