Cisco Web Security Appliance (WSA) Server Name Identification Data Exfiltration (cisco-sa-sni-data-exfil-mFgzXqLN)

According to its self-reported version, Cisco Web Security Appliance WSA is affected by a vulnerability in Server Name Identification SNI request filtering that allows an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from a compromised...

ShadowPad Malware is Becoming a Favorite Choice of Chinese Espionage Groups

ShadowPad, an infamous Windows backdoor that allows attackers to download further malicious modules or steal data, has been put to use by five different Chinese threat clusters since 2017. "The adoption of ShadowPad significantly reduces the costs of development and maintenance for threat actors,...

How Ready Are You for a Ransomware Attack?

Determining how hard a target you present for the current wave of human-driven ransomware involves multiple considerations. There are four steps to analyzing how prepared you are for a ransomware attack. Such analysis roughly breaks down as follows: 1 How easy it is to break into your environment...

Researchers Find New Evidence Linking Diavol Ransomware to TrickBot Gang

Cybersecurity researchers have disclosed details about an early development version of a nascent ransomware strain called Diavol that has been linked to threat actors behind the infamous TrickBot syndicate. The latest findings from IBM X-Force show that the ransomware sample shares similarities t...

CVE-2021-34749

A vulnerability in Server Name Identification SNI request filtering of Cisco Web Security Appliance WSA, Cisco Firepower Threat Defense FTD, and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from...

CVE-2021-34749

A vulnerability in Server Name Identification SNI request filtering of Cisco Web Security Appliance WSA, Cisco Firepower Threat Defense FTD, and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from...

Command injection

A vulnerability in Server Name Identification SNI request filtering of Cisco Web Security Appliance WSA, Cisco Firepower Threat Defense FTD, and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from...

CVE-2021-34749 Multiple Cisco Products Server Name Identification Data Exfiltration Vulnerability

A vulnerability in Server Name Identification SNI request filtering of Cisco Web Security Appliance WSA, Cisco Firepower Threat Defense FTD, and the Snort detection engine could allow an unauthenticated, remote attacker to bypass filtering technology on an affected device and exfiltrate data from...

CVE-2021-34749

CVE-2021-34749 affects Cisco WSA/FTD and the Snort detection engine. The issue stems from inadequate filtering of the SSL handshake in the SNI data path, allowing an unauthenticated remote attacker to bypass filters and exfiltrate data from a compromised host, potentially enabling command-and-con...

PT-2021-3823 · Cisco · Snort +2

Name of the Vulnerable Software and Affected Versions: Cisco Web Security Appliance affected versions not specified Cisco Firepower Threat Defense affected versions not specified Snort detection engine affected versions not specified Description: A vulnerability in Server Name Identification SNI...

CVE-2021-36798

A Denial-of-Service DoS vulnerability was discovered in Team Server in HelpSystems Cobalt Strike 4.2 and 4.3. It allows remote attackers to crash the C2 server thread and block beacons' communication with it...

Angry Affiliate Leaks Conti Ransomware Gang Playbook

An apparently vengeful affiliate of the Conti Gang has leaked the playbook of the ransomware group after alleging that the notorious cybercriminal organization underpaid him for doing its dirty work. A security researcher shared a comment from an online forum allegedly posted by someone who did...

New Chinese Spyware Being Used in Widespread Cyber Espionage Attacks

A threat actor presumed to be of Chinese origin has been linked to a series of 10 attacks targeting Mongolia, Russia, Belarus, Canada, and the U.S. from January to July 2021 that involve the deployment of a remote access trojan RAT on infected systems, according to new research. The intrusions ha...

Defending Against Malicious Cyber Activity Originating from Tor

Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® and Pre-ATT&CK framework. See the ATT&CK for Enterprise and Pre-ATT&CK frameworks for referenced threat actor techniques. This advisory—written by the Cybersecurity Security and Infrastructure...

Chinese Hackers Implant PlugX Variant on Compromised MS Exchange Servers

A Chinese cyberespionage group known for targeting Southeast Asia leveraged flaws in the Microsoft Exchange Server that came to light earlier this March to deploy a previously undocumented variant of a remote access trojan RAT on compromised systems. Attributing the intrusions to a threat actor...

Combing through the fuzz: Using fuzzy hashing and deep learning to counter malware detection evasion techniques

Today’s cybersecurity threats continue to find ways to fly and stay under the radar. Cybercriminals use polymorphic malware because a slight change in the binary code or script could allow the said threats to avoid detection by traditional antivirus software. Threat actors customize their wares...

Awesome-Red-Teaming

This is an offensive tool for Red Teaming. It is a list of resources for anyone wishing to learn about Red Teaming, including initial access, execution, persistence, privilege escalation, defense evasion, credential access, discovery, lateral movement, collection, exfiltration, command and contro...

When coin miners evolve, Part 1: Exposing LemonDuck and LemonCat, modern mining malware infrastructure

Note: In this two-part blog series, we expose a modern malware infrastructure and provide guidance for protecting against the wide range of threats it enables. Part 1 covers the evolution of the threat, how it spreads, and how it impacts organizations. Part 2 is a deep dive on the attacker behavi...

APT Hackers Distributed Android Trojan via Syrian e-Government Portal

An advanced persistent threat APT actor has been tracked in a new campaign deploying Android malware via the Syrian e-Government Web Portal, indicating an upgraded arsenal designed to compromise victims. "To the best of our knowledge, this is the first time that the group has been publicly observ...

NPM Package Steals Chrome Passwords

A credentials-stealing code bomb that uses legitimate password-recovery tools in Google’s Chrome web browser was found lurking in the npm open-source code repository, waiting to be planted within the sprawling galaxy of apps that pull code from that source. Researchers caught the malware filching...