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New 'SessionManager' Backdoor Targeting Microsoft IIS Servers in the Wild

New 'SessionManager' Backdoor Targeting Microsoft IIS Servers in the Wild

July 01, 2022Ravie Lakshmanan
A newly discovered malware has been put to use in the wild at least since March 2021 to backdoor Microsoft Exchange servers belonging to a wide range of entities worldwide, with infections lingering in 20 organizations as of June 2022. Dubbed  SessionManager , the malicious tool masquerades as a module for Internet Information Services ( IIS ), a web server software for Windows systems, after exploiting one of the ProxyLogon flaws within Exchange servers.  Targets included 24 distinct NGOs, government, military, and industrial organizations spanning Africa, South America, Asia, Europe, Russia and the Middle East. A total of 34 servers have been compromised by a SessionManager variant to date. This is far from the first time the technique has been  observed in real-world attacks . The use of a rogue IIS module as a means to distribute stealthy implants mirrors the tactics of a credential stealer called  Owowa  that came to light in December 2021. "Dropping an IIS module as a
Solving the indirect vulnerability enigma - fixing indirect vulnerabilities without breaking your dependency tree

Solving the indirect vulnerability enigma - fixing indirect vulnerabilities without breaking your dependency tree

July 01, 2022The Hacker News
Fixing indirect vulnerabilities is one of those complex, tedious and, quite frankly, boring tasks that no one really wants to touch. No one except for  Debricked , it seems. Sure, there are lots of ways to do it manually, but can it be done automatically with minimal risk of breaking changes? The Debricked team decided to find out.  A forest full of fragile trees So, where do you even start? Firstly, there needs to be a way to fix the vulnerability, which, for indirect dependencies, is no walk in the park. Secondly, it needs to be done in a safe way, or, without anything breaking.  You see, indirect dependencies are introduced deep down the dependency tree and it's very tricky to get to the exact version you want. As Debricked's Head of R&D once put it, " You are turning the knobs by playing around with your direct dependencies and praying to Torvalds that the correct indirect packages are resolved. When Torvalds is in your favour, you have to sacrifice some cloud
Amazon Quietly Patches 'High Severity' Vulnerability in Android Photos App

Amazon Quietly Patches 'High Severity' Vulnerability in Android Photos App

July 01, 2022Ravie Lakshmanan
Amazon, in December 2021, patched a high severity vulnerability affecting its  Photos app  for Android that could have been exploited to steal a user's access tokens. "The Amazon access token is used to authenticate the user across multiple Amazon APIs, some of which contain personal data such as full name, email, and address," Checkmarx researchers João Morais and Pedro Umbelino  said . "Others, like the Amazon Drive API, allow an attacker full access to the user's files." The Israeli application security testing company reported the issue to Amazon on November 7, 2021, following which the tech giant rolled out a fix on December 18, 2021. The leak is the result of a misconfiguration in one of the app's components named "com.amazon.gallery.thor.app.activity.ThorViewActivity" that's defined in the  AndroidManifest.xml file  and which, when launched, initiates an HTTP request with a header containing the access token. In a nutshell, it
Microsoft Warns of Cryptomining Malware Campaign Targeting Linux Servers

Microsoft Warns of Cryptomining Malware Campaign Targeting Linux Servers

June 30, 2022Ravie Lakshmanan
A cloud threat actor group tracked as 8220 has updated its malware toolset to breach Linux servers with the goal of installing crypto miners as part of a long-running campaign. "The updates include the deployment of new versions of a crypto miner and an IRC bot," Microsoft Security Intelligence said in a series of tweets on Thursday. "The group has actively updated its techniques and payloads over the last year." 8220, active since early 2017 , is a Chinese-speaking, Monero-mining threat actor so named for its preference to communicate with command-and-control (C2) servers over port 8220. It's also the developer of a tool called whatMiner, which has been co-opted by the Rocke cybercrime group in their attacks. In July 2019, the Alibaba Cloud Security Team uncovered an extra shift in the adversary's tactics, noting its use of rootkits to hide the mining program. Two years later, the gang resurfaced with Tsunami IRC botnet variants and a custom "
Google Blocks Dozens of Malicious Domains Operated by Hack-for-Hire Groups

Google Blocks Dozens of Malicious Domains Operated by Hack-for-Hire Groups

June 30, 2022Ravie Lakshmanan
Google's Threat Analysis Group (TAG) on Thursday disclosed it had acted to block as many as 36 malicious domains operated by hack-for-hire groups from India, Russia, and the U.A.E. In a manner analogous to the  surveillanceware ecosystem , hack-for-hire firms equip their clients with capabilities to enable targeted attacks aimed at corporates as well as activists, journalists, politicians, and other high-risk users. Where the two stand apart is that while customers purchase the spyware from commercial vendors and then deploy it themselves, the operators behind hack-for-hire attacks are known to conduct the intrusions on their clients' behalf in order to obscure their role. "The hack-for-hire landscape is fluid, both in how the attackers organize themselves and in the wide range of targets they pursue in a single campaign at the behest of disparate clients," Shane Huntley, director of Google TAG,  said  in a report. "Some hack-for-hire attackers openly adver
U.S. FCC Commissioner Asks Apple and Google to Remove TikTok from App Stores

U.S. FCC Commissioner Asks Apple and Google to Remove TikTok from App Stores

June 30, 2022Ravie Lakshmanan
One of the commissioners of the U.S. Federal Communications Commission (FCC) has renewed calls asking for Apple and Google to boot the popular video-sharing platform TikTok from their app stores citing "its pattern of surreptitious data practices." "It is clear that TikTok poses an unacceptable national security risk due to its extensive data harvesting being combined with Beijing's apparently unchecked access to that sensitive data," Brendan Carr, a Republican member of the FCC,  wrote  in a letter to Apple and Google's chief executives. TikTok, in September 2021,  disclosed  that there are one billion people who use its app every month, making it one of the largest social media platforms after Facebook, YouTube, WhatsApp, Instagram, and WeChat. Carr further emphasized that the short-form video service is far from just an app for sharing funny videos or memes, calling out its features as "sheep's clothing" intended to mask its core funct
What is Shadow IT and why is it so risky?

What is Shadow IT and why is it so risky?

June 30, 2022The Hacker News
Shadow IT refers to the practice of users deploying unauthorized technology resources in order to circumvent their IT department. Users may resort to using shadow IT practices when they feel that existing IT policies are too restrictive or get in the way of them being able to do their jobs effectively. An old school phenomenon  Shadow IT is not new. There have been countless examples of widespread shadow IT use over the years. In the early 2000s, for example, many organizations were reluctant to adopt Wi-Fi for fear that it could undermine their security efforts. However, users wanted the convenience of wireless device usage and often deployed wireless access points without the IT department's knowledge or consent. The same thing happened when the iPad first became popular. IT departments largely prohibited iPads from being used with business data because of the inability to apply group policy settings and other security controls to the devices. Even so, users often ignored IT and
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