Tag: Threat Bounty Program

Spring4Shell Detection: New Java Vulnerability Follows in the Footsteps of Notorious Log4j
Spring4Shell Detection: New Java Vulnerability Follows in the Footsteps of Notorious Log4j

When spring comes, bugs bloom. A novel, highly severe flaw in the Spring Cloud Function came on the radar on March 29, 2022. An easy to exploit vulnerability affects the Spring Core module – a framework used in Java applications, and requires JDK9+. If exploited, this Spring Core vulnerability enables hackers to execute remote code […]

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New Korplug Variant Spread by Mustang Panda: PlugX RAT Named Hodur
New Korplug Variant Spread by Mustang Panda: PlugX RAT Named Hodur

Researchers warn about a new cyber espionage campaign by notorious Mustang Panda APT group that has been ongoing since at least August 2021. A previously undisclosed variation of Korplug (also known as PlugX) remote access tool (RAT) has been targeting primarily Ukrainian organizations and European diplomatic missions. The new malware strain was named Hodur referencing […]

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Vidar Malware Detection: Payloads Concealed in Microsoft Help Files
Vidar Malware Detection: Payloads Concealed in Microsoft Help Files

A new unusual malware delivery method has been observed since February 2022. The newest research shows evidence of a resurgence of a Vidar information stealer that has been operating since at least 2018. The latest Vidar campaign is plainly straightforward except for one special trick. This time, threat actors tend to hide their payload within […]

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Muhstik Botnet Detection: Infamous Gang Resurfaces with New Behavior Attacking Redis Servers
Muhstik Botnet Detection: Infamous Gang Resurfaces with New Behavior Attacking Redis Servers

The Muhstik botnet has been around since 2018, continuously expanding the map of its victims, hitting new services and platforms, and diversifying its range of attacks, including coin mining activities, staging DDoS attacks, or exploiting the infamous vulnerabilities in the Log4j Java library. This time, the notorious malware gang has been actively exploiting a Lua […]

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APT35 Using ProxyShell Vulnerabilities to Deploy Multiple WebShells
APT35 Using ProxyShell Vulnerabilities to Deploy Multiple WebShells

A new burst of Iranian state-sponsored APT35 attacks has been observed by researchers over the past few months. A new study shows that APT35 (a.k.a. TA453, COBALT ILLUSION, Charming Kitten, ITG18, Phosphorus, Newscaster) has been increasingly exploiting Microsoft Exchange ProxyShell vulnerabilities for initial access and leveraging quite a bunch of different attack vectors once they […]

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Gold Dragon Backdoor Detection: Kimsuky Hackers Strike Again Using Gold Dragon Malware
Gold Dragon Backdoor Detection: Kimsuky Hackers Strike Again Using Gold Dragon Malware

The most recent hacking campaign by North Korean APT Kimsuky was launched in late January 2022 and is still ongoing. This time, Kimsuky hackers are armed with commodity open-source remote access tools (RATs) installed with the tailored malware Gold Dragon. Detect Gold Dragon Backdoor To identify that your system was compromised with the Gold Dragon […]

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Serpent Backdoor Detection: a New Sneaky Malware Hits French Entities
Serpent Backdoor Detection: a New Sneaky Malware Hits French Entities

A new targeted malware has been observed attacking government and construction entities in France. Proofpoint conducted extensive research of the malware dubbed Serpent.  Serpent Backdoor analysis showed that adversaries have been using quite a few unusual behaviors that have never been detected before. This calls for crafting new detection content that captures specifically those new […]

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MicroBackdoor Malware: Belarusian APT Group UNC1151 (UAC-0051) Targets Ukrainian Government
MicroBackdoor Malware: Belarusian APT Group UNC1151 (UAC-0051) Targets Ukrainian Government

This article highlights the original research conducted by CERT-UA: https://cert.gov.ua/article/37626  On March 7, 2022, the Computer Emergency Response Team for Ukraine (CERT-UA) issues an urgent warning detailing an ongoing spear-phishing campaign executed against private emails of Ukrainian officials, including the Ukrainian armed forces personnel. With a high level of confidence, CERT-UA attributes the malicious operation […]

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LAPSUS$ Digital Extortion Gang Claims Microsoft’s Data Leak: Breach Affected Okta Customers
LAPSUS$ Digital Extortion Gang Claims Microsoft’s Data Leak: Breach Affected Okta Customers

On March 21, 2022, LAPSUS$ gang published a series of posts in their Telegram channel displaying screenshots of what they called Microsoft Bing and Cortana visual assistant source code. Besides 40 Gb of leaked data, they also showed a compromised administrative account of Okta, a platform that provides digital identity verification for individuals and organizations. […]

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Threat Actors Leverage Spear-Phishing E-Mails Mimicking UKR.NET Service for Espionage
Threat Actors Leverage Spear-Phishing E-Mails Mimicking UKR.NET Service for Espionage

This article highlights the original research provided by CERT-UA: https://cert.gov.ua/article/37788  On March 16, 2022, the Computer Emergency Response Team from Ukraine CERT-UA identified a spear-phishing campaign aimed at infecting Ukrainian organizations with cyber-espionage malware. With a low level of confidence, given the tactics used, CERT-UA associates the identified activity with one of the top Russia-backed […]

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