The Hacker News Logo
Subscribe to Newsletter

The Hacker News - Cybersecurity News and Analysis

New Malware Targets Windows Subsystem for Linux to Evade Detection

New Malware Targets Windows Subsystem for Linux to Evade Detection

September 17, 2021Ravie Lakshmanan
A number of malicious samples have been created for the Windows Subsystem for Linux (WSL) with the goal of compromising Windows machines, highlighting a sneaky method that allows the operators to stay under the radar and thwart detection by popular anti-malware engines. The "distinct tradecraft" marks the first instance where a threat actor has been found abusing WSL to install subsequent payloads. "These files acted as loaders running a payload that was either embedded within the sample or retrieved from a remote server and was then injected into a running process using Windows API calls," researchers from Lumen Black Lotus Labs  said  in a report published on Thursday. Windows Subsystem for Linux, launched in August 2016, is a  compatibility layer  that's designed to run Linux binary executables (in ELF format) natively on the Windows platform without the overhead of a traditional virtual machine or dual-boot setup. The earliest artifacts date back to M
Malware Attack on Aviation Sector Uncovered After Going Unnoticed for 2 Years

Malware Attack on Aviation Sector Uncovered After Going Unnoticed for 2 Years

September 17, 2021Ravie Lakshmanan
A targeted phishing campaign aimed at the aviation industry for two years may be spearheaded by a threat actor operating out of Nigeria, highlighting how attackers can carry out small-scale cyber offensives for extended periods of time while staying under the radar. Cisco Talos dubbed the malware attacks "Operation Layover," building on  previous research  from the Microsoft Security Intelligence team in May 2021 that delved into a "dynamic campaign targeting the aerospace and travel sectors with spear-phishing emails that distribute an actively developed loader, which then delivers RevengeRAT or AsyncRAT." "The actor […] doesn't seem to be technically sophisticated, using off-the-shelf malware since the beginning of its activities without developing its own malware," researchers Tiago Pereira and Vitor Ventura  said . "The actor also buys the crypters that allow the usage of such malware without being detected, throughout the years it has use
Travis CI Flaw Exposes Secrets of Thousands of Open Source Projects

Travis CI Flaw Exposes Secrets of Thousands of Open Source Projects

September 16, 2021Ravie Lakshmanan
Continuous integration vendor Travis CI has patched a serious security flaw that exposed API keys, access tokens, and credentials, potentially putting organizations that use public source code repositories at risk of further attacks. The issue — tracked as  CVE-2021-41077  — concerns unauthorized access and plunder of secret environment data associated with a public open-source project during the software build process. The problem is said to have lasted during an eight-day window between September 3 and September 10. Felix Lange of Ethereum has been credited with discovering the leakage on September 7, with the company's Péter Szilágyi  pointing out  that "anyone could exfiltrate these and gain lateral movement into 1000s of [organizations]." Travis CI is a hosted CI/CD (short for continuous integration and continuous deployment) solution used to build and test software projects hosted on source code repository systems like GitHub and Bitbucket. "The desired b
Third Critical Bug Affects Netgear Smart Switches — Details and PoC Released

Third Critical Bug Affects Netgear Smart Switches — Details and PoC Released

September 16, 2021Ravie Lakshmanan
New details have been revealed about a recently remediated critical vulnerability in Netgear smart switches that could be leveraged by an attacker to potentially execute malicious code and take control of vulnerable devices. The flaw — dubbed " Seventh Inferno " (CVSS score: 9.8) — is part of a trio of security weaknesses, called Demon's Cries (CVSS score: 9.8) and Draconian Fear (CVSS score: 7.8), that Google security engineer Gynvael Coldwind reported to the networking, storage, and security solutions provider. The disclosure comes weeks after Netgear  released patches  to address the vulnerabilities earlier this month, on September 3. Successful exploitation of  Demon's Cries and Draconian Fear  could grant a malicious party the ability to change the administrator password without actually having to know the previous password or hijack the session bootstrapping information, resulting in a full compromise of the device. Now, in a new post sharing technical spe
Windows MSHTML 0-Day Exploited to Deploy Cobalt Strike Beacon in Targeted Attacks

Windows MSHTML 0-Day Exploited to Deploy Cobalt Strike Beacon in Targeted Attacks

September 16, 2021Ravie Lakshmanan
Microsoft on Wednesday disclosed details of a targeted phishing campaign that leveraged a now-patched zero-day flaw in its MSHTML platform using specially-crafted Office documents to deploy Cobalt Strike Beacon on compromised Windows systems. "These attacks used the vulnerability, tracked as  CVE-2021-40444 , as part of an initial access campaign that distributed custom Cobalt Strike Beacon loaders," Microsoft Threat Intelligence Center  said  in a technical write-up. "These loaders communicated with an infrastructure that Microsoft associates with multiple cybercriminal campaigns, including human-operated ransomware." Details about CVE-2021-40444 (CVSS score: 8.8) first  emerged  on September 7 after researchers from EXPMON alerted the Windows maker about a "highly sophisticated zero-day attack" aimed at Microsoft Office users by taking advantage of a remote code execution vulnerability in MSHTML (aka Trident), a proprietary browser engine for the now
You Can Now Sign-in to Your Microsoft Accounts Without a Password

You Can Now Sign-in to Your Microsoft Accounts Without a Password

September 15, 2021Ravie Lakshmanan
Microsoft on Wednesday announced a new passwordless mechanism that allows users to access their accounts without a password by using Microsoft Authenticator, Windows Hello, a security key, or a verification code sent via SMS or email. The change is expected to be rolled out in the coming weeks. "Except for auto-generated passwords that are nearly impossible to remember, we largely create our own passwords,"  said  Vasu Jakkal, Microsoft's corporate vice president for Security, Compliance, and Identity. "But, given the vulnerability of passwords, requirements for them have gotten increasingly complex in recent years, including multiple symbols, numbers, case sensitivity, and disallowing previous passwords." "Passwords are incredibly inconvenient to create, remember, and manage across all the accounts in our lives," Jakkal added. Over the years, weak passwords have emerged as the entry point for a vast majority of attacks across enterprise and cons
Critical Flaws Discovered in Azure App That Microsoft Secretly Installs on Linux VMs

Critical Flaws Discovered in Azure App That Microsoft Secretly Installs on Linux VMs

September 15, 2021Ravie Lakshmanan
Microsoft on Tuesday addressed a quartet of security flaws as part of its  Patch Tuesday updates  that could be abused by adversaries to target Azure cloud customers and elevate privileges as well as allow for remote takeover of vulnerable systems. The list of flaws, collectively called OMIGOD by researchers from Wiz, affect a little-known software agent called Open Management Infrastructure that's automatically deployed in many Azure services - CVE-2021-38647  (CVSS score: 9.8) - Open Management Infrastructure Remote Code Execution Vulnerability CVE-2021-38648  (CVSS score: 7.8) - Open Management Infrastructure Elevation of Privilege Vulnerability CVE-2021-38645  (CVSS score: 7.8) - Open Management Infrastructure Elevation of Privilege Vulnerability CVE-2021-38649  (CVSS score: 7.0) - Open Management Infrastructure Elevation of Privilege Vulnerability Open Management Infrastructure ( OMI ) is an open-source  analogous equivalent  of Windows Management Infrastructure (WMI
Online Courses and Software

Sign up for cybersecurity newsletter and get latest news updates delivered straight to your inbox daily.