Researchers Uncover Custom Backdoors and Spying Tools Used by Polonium Hackers

A threat actor tracked as Polonium has been linked to over a dozen highly targeted attacks aimed at Israelian entities with seven different custom backdoors since at least September 2021. The intrusions were aimed at organizations in various verticals, such as engineering, information technology,...

Microsoft Issues Improved Mitigations for Unpatched Exchange Server Vulnerabilities

Microsoft on Friday disclosed it has made more improvements to the mitigation method offered as a means to prevent exploitation attempts against the newly disclosed unpatched security flaws in Exchange Server. To that end, the tech giant has revised the blocking rule in IIS Manager from...

TOP 10 unattributed APT mysteries

Targeted attack attribution is always a tricky thing, and in general, we believe that attribution is best left to law enforcement agencies. The reason is that, while in 90% of cases it is possible to understand a few things about the attackers, such as their native language or even location, the...

Analyzing attacks using the Exchange vulnerabilities CVE-2022-41040 and CVE-2022-41082

October 1, 2022 update – Added information about Exploit:Script/ExchgProxyRequest.A, Microsoft Defender AV’s robust detection for exploit behavior related to this threat. We also removed a section on MFA as a mitigation, which was included in a prior version of this blog as standard guidance...

Pmanager - Store And Retrieve Your Passwords From A Secure Offline Database. Check If Your Passwords Has Leaked Previously To Prevent Targeted Password Reuse Attacks

Demo Description Store and retrieve your passwords from a secure offline database. Check if your passwords has leaked previously to prevent targeted password reuse attacks. Why develop another password manager ? This project was initially born from my desire to learn Rust. I was tired of using th...

Microsoft Confirms 2 New Exchange Zero-Day Flaws Being Used in the Wild

Microsoft officially disclosed it investigating two zero-day security vulnerabilities impacting Exchange Server 2013, 2016, and 2019 following reports of in-the-wild exploitation. "The first vulnerability, identified as CVE-2022-41040, is a Server-Side Request Forgery SSRF vulnerability, while th...

Microsoft Releases Guidance on Zero-Day Vulnerabilities in Microsoft Exchange Server

Microsoft has released Customer Guidance for Reported Zero-day Vulnerabilities in Microsoft Exchange Server. According to the blog post, “Microsoft is aware of limited targeted attacks using the two vulnerabilities to get into users’ systems.” The two vulnerabilities are CVE-2022-41040 and...

CVE-2022-39248

matrix-android-sdk2 is the Matrix SDK for Android. Prior to version 1.5.1, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a sophisticated attacker...

CVE-2022-39251 Matrix Javascript SDK vulnerable to Olm/Megolm protocol confusion

Matrix Javascript SDK is the Matrix Client-Server SDK for JavaScript. Prior to version 19.7.0, an attacker cooperating with a malicious homeserver can construct messages that legitimately appear to have come from another person, without any indication such as a grey shield. Additionally, a...

Moisha Ransomware spotted launching highly targeted attacks

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary Moisha ransomware based on .Net was first mentioned in mid-August, along with the PTMOISHA team, the threat actor behind it. This ransomware was developed to carry out very targeted attacks, as indicated...

Apache Traffic Server 输入验证错误漏洞

Apache Traffic Server ATS or TS is a high-performance, modular HTTP proxy and caching server, similar to Nginx and Squid. Traffic Server was originally a commercial product of Inktomi, a company acquired by Yahoo in 2003, and in August 2009 Yahoo contributed the source code to the In August 2009...

Targeted attack on industrial enterprises and public institutions

In January 2022, Kaspersky ICS CERT experts detected a wave of targeted attacks on military industrial complex enterprises and public institutions in several countries. In the course of our research, we were able to identify over a dozen of attacked organizations. The attack targeted industrial...

The Bug Report – July 2022 Edition

The Bug Report – July 2022 Edition By Trellix · August 3, 2022 This story was also written by Kasimir Schulz and Jesse Chick Your Cybersecurity Comic Relief Why am I here? Welcome to the Bug Report, Heat Wave Edition! In the face of chronic irritability and soggy-pants syndrome, we are back at it...

KNOTWEED exploits zero-days to target US and Europe

Threat Level Actor Report For a detailed advisory, download the pdf file here Summary KNOTWEED, an Austria-based private-sector offensive actor PSOA, are exploiting 0-day vulnerabilities of Windows and Adobe to perform targeted attacks against European and Central American customers by using thei...

The ransomware landscape changes as fewer victims decide to pay

Fewer victims are choosing to pay their ransomware extorters, especially among large enterprises, according to a recent investigation from Coveware. As a result of this, and other circumstances, we can see some shifts in the way that ransomware groups and their affiliates work. Large organization...

Microsoft Uncovers Austrian Company Exploiting Windows and Adobe Zero-Day Exploits

A cyber mercenary that "ostensibly sells general security and information analysis services to commercial customers" used several Windows and Adobe zero-day exploits in limited and highly-targeted attacks against European and Central American entities. The company, which Microsoft describes as a...

CVE-2022-2294

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. Recent assessments: gwillcox-r7 at July 05, 2022 3:18am UTC reported: Looks like this was a heap buffer overflow in WebRTC which could...

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

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...

Trellix Global Defenders: Defending against Cyber Espionage Campaigns – Operation Graphite

Trellix Global Defenders: Defending against Cyber Espionage Campaigns – Operation Graphite By Ben Marandel, Arnab Roy · June 20, 2022 Cyber Espionage campaigns by nature are targeted attacks that can go undetected for prolonged periods of time. Cyber Espionage campaigns often involve adversaries...

Managed detection and response in 2021

Kaspersky Managed Detection and Response MDR helps organizations to complement existing detection capabilities or to expand limited in-house resources to protect their infrastructure from the growing number and complexity of threats in real time. We collect telemetry from clients networks and...