Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware

Trellix Global Defenders: Analysis and Protections for BlackByte Ransomware By Taylor Mullins · February 28, 2022 BlackByte Ransomware has been in the news of late due to a successful attack against a National Football League NFL Franchise and a Joint Cybersecurity Advisory by the Federal Bureau ...

Analysis and Protections for RagnarLocker Ransomware

Trellix Global Defenders: Analysis and Protections for RagnarLocker Ransomware By Taylor Mullins · February 28, 2022 The United States Federal Bureau of Investigation FBI has released a Flash Alert warning that the RagnarLocker ransomware gang has breached the networks of at least fifty-two...

Iranian Government-Sponsored Actors Conduct Cyber Operations Against Global Government and Commercial Networks

Summary Actions to Take Today to Protect Against Malicious Activity Search for indicators of compromise. Use antivirus software. Patch all systems. Prioritize patching known exploited vulnerabilities. Train users to recognize and report phishing attempts. Use multi-factor authentication. Note: th...

Detect active network reconnaissance with Microsoft Defender for Endpoint

The Microsoft Compromise Recovery Security Practice has observed how the security industry has evolved over the last few years as consumers, businesses, and industry professionals continue to adapt to the changing landscape. We have seen the emergence of new frameworks, such as the Cybersecurity...

Iranian state-sponsored APT group MuddyWater targeting organizations via malicious executables

THREAT LEVEL: Red. United States Cyber Command USCYBERCOM has warned of an ongoing cyber attack by Iranian state sponsored actor named as MuddyWater. This APT group is currently targeting Middle Eastern countries and has also targeted European and North American nations. The Iranian-backed...

Vulnerability fixed in Zimbra

A vulnerability has been fixed in Zimbra. An unauthenticated malicious party could exploit the vulnerability to perform a reflected cross-site scripting attack. Such an attack can lead to the execution of arbitrary script code in the browser with which the application is visited. Within Zimbra,...

Vulnerability fixed in Arista EOS

A vulnerability has been fixed in Arista EOS. Arista EOS is a Linux-based operating system installed on network equipment from Arista. With eAPI it is possible to remotely manage and configure Arista's network equipment. When authentication is based on certificates, it is possible that eAPI...

Mageia: Security Advisory (MGASA-2021-0372)

The remote host is missing an update for the SPDX-FileCopyrightText: 2022 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Return of Pseudo Ransomware

Return of Pseudo Ransomware By Trellix, Max Kersten and Raj Samani · January 20, 2022 Arnab Roy, Filippo Sitzia and Mo Cashman contributed to the research supporting this blog Recent news reports of a “ransomware” campaign targeting Ukraine has resulted in significant press coverage regarding not...

Return of Pseudo Ransomware

Return of Pseudo Ransomware By Trellix, Max Kersten and Raj Samani · January 20, 2022 Arnab Roy, Filippo Sitzia and Mo Cashman contributed to the research supporting this blog Recent news reports of a “ransomware” campaign targeting Ukraine has resulted in significant press coverage regarding not...

GHSA-QC9X-GJCV-465W Pipenv's requirements.txt parsing allows malicious index url in comments

Issue Summary Due to a flaw in pipenv's parsing of requirements files, an attacker can insert a specially crafted string inside a comment anywhere within a requirements.txt file, which will cause victims who use pipenv to install the requirements file e.g. with "pipenv install -r requirements.txt...

Rootkit found in HPE iLO environments

Security researchers at AmnPardaz have published an investigation published about a rootkit found in HPE iLO systems. The malware, called "iLOBleed," was used, among other things, to to wipe a system's hard drives. Because the iLO subsystem has exceptionally high privileges, compromising it means...

Dridex affiliate dresses up as Scrooge

Threat actors are hoping to catch a few more victims before they leave work for the Christmas holidays. The recent malicious spam campaigns malspam we and others have observed appear to have been created by someone who wants to play Scrooge and add onto peoples already heightened state of anxiety...

CVE-2021-0674

creationtimestamp| type| source ---|---|--- 2021-12-17 20:37:05+00:00| seen| https://t.me/cibsecurity/34214 2022-04-21 13:12:06+00:00| published-proof-of-concept| https://t.me/cKure/9397 2022-04-22 11:53:08+00:00| seen| https://t.me/truesecator/2876 2022-04-27 00:01:18+00:00| seen|...

Exploit for Deserialization of Untrusted Data in Siemens 6Bk1602-0Aa12-0Tp0_Firmware

Log4Shell（CVE-2021-44228）related attacks IOCs 源IP使用Apache Log4j RCE尝试攻击，其中包含很大部分Tor节点，详见Attack-IP.md 利用log4j漏洞传播的恶意程序、Botnet等IOC详见IOC-C2.md Snort检测规则详见Snort.md Suricata规则详见Suricata.md...

Cerber targeting organizations with publicly available exploits

THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. Cerber, ransomware that mysteriously vanished in 2019, has reappeared with a new encryption. The new cerber includes fresh source code and makes use of the new library Crypto+++, whereas the previous form made use of Windows...

Iranian Government-Sponsored APT Cyber Actors Exploiting Microsoft Exchange and Fortinet Vulnerabilities

CISA, the Federal Bureau of Investigation FBI, the Australian Cyber Security Centre ACSC, and the United Kingdom’s National Cyber Security Centre NCSC have released a joint Cybersecurity Advisory highlighting ongoing malicious cyber activity by an advanced persistent threat APT group that FBI,...

FBI Releases Indicators of Compromise Associated with Ranzy Locker Ransomware

The Federal Bureau of Investigation FBI has released a Flash report detailing indicators of compromise IOCs associated with attacks using Ranzy Locker, a ransomware variant first identified targeting victims in the United States in late 2020. CISA encourages users and administrators to review the...

SAS 2021: Learning to ChaCha with APT41

Straight from the sunny UK to the stage of SAS-at-Home 2021, John Southworth PwC will be giving some insights about the threat actor APT41, also known as Red Kelpie and Winnti. Starting with APT10 Red Apollo, the presentation will dance you through the malware used by APT41 – the Motnug loader an...

Working PoC Is Out for VMware vCenter CVE-2021-22005 Flaw

A fully working exploit for the critical CVE-2021-22005 remote code-execution RCE vulnerability in VMware vCenter is now public and being exploited in the wild. Released on Monday by Rapid7 security engineer William Vu who goes by the Twitter handle wvu, this one’s different from the incomplete...