TeamTNT Campaigns Emphasize Importance of Addressing Cloud Security Gaps

Having covered TeamTNT in several of our blog entries over the past couple of years, we embarked on a research that encompasses the malicious actor group’s campaigns, tools, and techniques in 2020 and early 2021...

Significant Historical Cyber-Intrusion Campaigns Targeting ICS

Protecting our Nation’s critical infrastructure is the responsibility of federal and state, local, tribal, and territorial SLTT governments and owners and operators of that infrastructure. The cybersecurity threats posed to the industrial control systems ICS that control and operate critical...

Protecting customers from a private-sector offensive actor using 0-day exploits and DevilsTongue malware

The Microsoft Threat Intelligence Center MSTIC alongside the Microsoft Security Response Center MSRC has uncovered a private-sector offensive actor, or PSOA, that we are calling SOURGUM in possession of now-patched, Windows 0-day exploits CVE-2021-31979 and CVE-2021-33771. Private-sector offensiv...

China's Cyberspies Targeting Southeast Asian Government Entities

A sweeping and "highly active campaign" that originally set its sights on Myanmar has broadened its focus to strike a number of targets located in the Philippines, according to new research. Russian cybersecurity firm Kaspersky, which first spotted the infections in October 2020, attributed them ...

CVE-2021-35211

CVE-2021-35211 affects SolarWinds Serv-U Managed File Transfer and Serv-U Secure FTP for Windows prior to 15.2.3 HF2. The connected PoC exploit documents an out-of-bounds write path leading to remote code execution, with targets around Serv-U version 15.2.3 (examples cite 15.2.3.717). Exploitatio...

CVE-2021-33766 ProxyToken

Microsoft Exchange Server Information Disclosure Vulnerability Recent assessments: NinjaOperator at August 30, 2021 4:59pm UTC reported: An unauthenticated actor can perform configuration actions on mailboxes belonging to arbitrary users. Which can be used to copy all emails addressed to a target...

SolarWinds Issues Hotfix for Zero-Day Flaw Under Active Attack

SolarWinds has issued a hotfix for a zero-day remote code execution RCE vulnerability already under active, yet limited, attack on some of the company’s customers. Microsoft alerted the company about the flaw, which affects its Serv-U Managed File Transfer Server and Serv-U Secured FTP products...

CVE-2021-35211

Microsoft discovered a remote code execution RCE vulnerability in the SolarWinds Serv-U product utilizing a Remote Memory Escape Vulnerability. If exploited, a threat actor may be able to gain privileged access to the machine hosting Serv-U Only. SolarWinds Serv-U Managed File Transfer and Serv-U...

SolarWinds Serv-U FTP and Managed File Transfer CVE-2021-35211: What You Need to Know

On July 12, 2021, SolarWinds confirmed an actively exploited zero-day vulnerability, CVE-2021-35211, in the Serv-U FTP and Managed File Transfer component of SolarWinds15.2.3 HF1 released May 5, 2021 and all prior versions. Successful exploitation of CVE-2021-35211 could enable an attacker to gai...

CVE-2021-32727

Nextcloud Android Client is the Android client for Nextcloud. Clients using the Nextcloud end-to-end encryption feature download the public and private key via an API endpoint. In versions prior to 3.16.1, the Nextcloud Android client skipped a step that involved the client checking if a private...

CVE-2021-32727

The CVE concerns the Nextcloud Android Client and an end-to-end encryption oversight. In versions prior to 3.16.1, the client skipped a step that verifies whether a private key belongs to a previously downloaded public certificate. If a malicious public key is served by the Nextcloud instance, da...

CISA Releases Analysis of FY20 Risk and Vulnerability Assessments

CISA has released an analysis and infographic detailing the findings from the Risk and Vulnerability Assessments RVAs conducted in Fiscal Year FY 2020 across multiple sectors. The analysis details a sample attack path a cyber threat actor could take to compromise an organization with weaknesses...

Mongolian Certificate Authority Hacked to Distribute Backdoored CA Software

In yet another instance of software supply chain attack, unidentified hackers breached the website of MonPass, one of Mongolia's major certificate authorities, to backdoor its installer software with Cobalt Strike binaries. The trojanized client was available for download between February 8, 2021...

IndigoZebra APT Hacking Campaign Targets the Afghan Government

Cybersecurity researchers are warning of ongoing attacks coordinated by a suspected Chinese-speaking threat actor targeting the Afghanistan government as part of an espionage campaign that may have had its provenance as far back as 2014. Israeli cybersecurity firm Check Point Research attributed...

EulerOS 2.0 SP9 : curl (EulerOS-SA-2021-2049)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3...

Exploit for Exposure of Sensitive System Information to an Unauthorized Control Sphere in Microsoft

CVE-2021-31955 Windows Kernel Informati...

New Nobelium activity

The Microsoft Threat Intelligence Center is tracking new activity from the NOBELIUM threat actor. Our investigation into the methods and tactics being used continues, but we have seen password spray and brute-force attacks and want to share some details to help our customers and communities prote...

Watch Out! Zyxel Firewalls and VPNs Under Active Cyberattack

Taiwanese networking equipment company Zyxel is warning customers of an ongoing attack targeting a "small subset" of its security products such as firewall and VPN servers. Attributing the attacks to a "sophisticated threat actor," the firm noted that the attacks single out appliances that have...

New Nobelium activity

The Microsoft Threat Intelligence Center is tracking new activity from the NOBELIUM threat actor. Our investigation into the methods and tactics being used continues, but we have seen password spray and brute-force attacks and want to share some details to help our customers and communities prote...

New Nobelium activity

The Microsoft Threat Intelligence Center is tracking new activity from the NOBELIUM threat actor. Our investigation into the methods and tactics being used continues, but we have seen password spray and brute-force attacks and want to share some details to help our customers and communities prote...