Security Affairs

MARCH 3, 2023

“FBI and CISA believe this variant, which uses its own custom-made file encryption program, evolved from earlier iterations that used “Zeon” as a loader.” The Royal ransomware can either fully or partially encrypt a file depending on its size and the ‘-ep’ parameter. ” reads the alert. ” continues the alert.

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Security Affairs

MAY 9, 2023

The new ransomware strain outstands for the use of encryption to protect the ransomware binary. CACTUS essentially encrypts itself, making it harder to detect and helping it evade antivirus and network monitoring tools,” Laurie Iacono, Associate Managing Director for Cyber Risk at Kroll, told Bleeping Computer.

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Security Affairs

MAY 4, 2022

The security researcher John Page aka ( hyp3rlinx ) discovered that malware from multiple ransomware operations, including Conti , REvil , LockBit , AvosLocker , and Black Basta, are affected by flaws that could be exploited block file encryption. “Conti looks for and executes DLLs in its current directory.

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Security Affairs

FEBRUARY 28, 2023

Antivirus company Bitdefender has released a free decryptor for the recently discovered ransomware family MortalKombat. Good news for the victims of the recently discovered MortalKombat ransomware , the antivirus firm Bitdefender has released a free decryptor that will allow them to recover their file without paying the ransom.

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Security Affairs

MARCH 9, 2023

“This payload extracts ScrubCrypt, which obfuscates and encrypts applications and makes them able to dodge security programs. The PowerShell script is encoded to avoid detection by AntiVirus solutions. The experts noticed that encrypted data at the top can be split into four parts using backslash “”.

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Security Affairs

MARCH 19, 2022

The AvosLocker ransomware-as-a-service emerged in the threat landscape in September 2021, since January the group expanded its targets by implementing the support for encrypting Linux systems, specifically VMware ESXi servers. Install and regularly update antivirus software on all hosts, and enable real time detection.

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Security Affairs

OCTOBER 13, 2023

The AvosLocker ransomware-as-a-service emerged in the threat landscape in September 2021, since January the group expanded its targets by implementing support for encrypting Linux systems, specifically VMware ESXi servers. bat) scripts [T1059.003] for lateral movement, privilege escalation, and disabling antivirus software.

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The Last Watchdog

JUNE 21, 2020

Although most people think of ransomware as a dodgy application that encrypts data and holds it for ransom, the concept is much more heterogeneous than that. File encryption 2013 – 2015. It emerged in September 2013 and paved the way for hundreds of file-encrypting menaces that have splashed onto the scene ever since.

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Security Affairs

AUGUST 27, 2022

Our investigation showed that the samples had leaked accounts, customer passwords, and unique company IDs used as extensions of encrypted files.” This ransomware has techniques for evading detection by taking advantage of the “safe mode” feature of a device to proceed with its encryption routine unnoticed.

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Security Affairs

OCTOBER 31, 2022

In the early afternoon of Friday 12 May 2017, the media broke the news of a global computer security attack carried out through a malicious code capable of encrypting data residing in information systems and demanding a ransom in cryptocurrency to restore them, the Wannacry ransomware. Cryptolocker and exploit components.

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Security Affairs

MARCH 17, 2021

According to the experts, the first infections were observed in late 2019, victims reported their files were encrypted by a strain of malware. locked to the filename of the encrypted files. The attackers implement a double extortion model using the PYSA ransomware to exfiltrate data from victims prior to encrypting their files.

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Security Affairs

MARCH 19, 2020

” According to the experts, the first infections were observed in late 2019, victims reported their files were encrypted by a strain of malware. locked to the filename of the encrypted files. “On one of the compromised information systems, experts found encrypted files with the extension “ newversion.”

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Security Affairs

JANUARY 6, 2023

. “The hackers entered the system and encrypted the December database. ” According to the media outlet, the attack was sophisticated, and both the Romanian Directorate for Investigating Organized Crime and Terrorism (DIICOT) and the Romanian antivirus firm BitDefender were not able to decrypt the files.

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Security Affairs

MAY 4, 2023

FBI and CISA believe this variant, which uses its own custom-made file encryption program, evolved from earlier iterations that used “Zeon” as a loader.” After gaining access to victims’ networks, Royal actors disable antivirus software and exfiltrate large amounts of data before ultimately deploying the ransomware and encrypting the systems.”

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Security Affairs

FEBRUARY 14, 2022

“BlackByte is a Ransomware as a Service (RaaS) group that encrypts files on compromised Windows host systems, including physical and virtual servers.” Once gained access to the network, threat actors deployed tools to perform lateral movements and escalate privileges before exfiltrating and encrypting files.

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Security Affairs

MARCH 18, 2023

” By protecting the code with encryption, the latest LockBit version can avoid the detection of signature-based anti-malware solutions. The RaaS’s affiliates use the following tools to exfiltrate data before encrypting it: Stealbit, a custom exfiltration tool used previously with LockBit 2.0;

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Security Affairs

AUGUST 3, 2020

He had no previous criminal records at the time of the arrest, but it is known to be a member of a cybercrime forum to become an affiliate for the GandCrab ransomware operation. ransom amount, individual bots and encryption masks). The authorities did not reveal the name of the man, they arrested him in Gomel (Belarus).

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Security Affairs

AUGUST 31, 2022

At the time of publication, this particular file is undetected by all antivirus vendors according to VirusTotal” The Base64 encoded payload, once decrypted, is a Windows 64-bit executable (1.7MB) called “msdllupdate.exe.”. “This technique works by sending an encrypted string appended to the DNS query set as a subdomain.

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Security Affairs

FEBRUARY 21, 2023

In order to make it impossible for the victims to recover the encrypted files, the ransomware deletes the Volume Shadow Copy Service (VSS) using the Service Control Manager and the Windows backup utility catalog along with any shadow copies.

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Security Affairs

MARCH 14, 2022

The victims’ data is encrypted and sent to the C2 server geolocated in Russia. At this moment, the infection chain is able to bypass the antivirus detection, with the latter EXE ( WpfApp14.exe Finally, the string is encrypted with a well-known algorithm used in different Latin American threats, and the content is sent to the C2 server.

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Security Affairs

NOVEMBER 19, 2019

To bypass antivirus systems, hackers send out malicious emails in non-working hours with delayed activation. Another technique used by cybercriminals to bypass antivirus systems is a targeted attack, in which malicious email are delivered outside regular working hours. More than 80% of all malicious files were disguised as .zip

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Security Affairs

JULY 3, 2021

Mark Loman, a Sophos malware analyst, who is investigating the incident explained that the REvil ransomware operator disables antivirus software to deploy a fake Windows Defender app that runs ransomware binary. We are monitoring a REvil 'supply chain' attack outbreak, which seems to stem from a malicious Kaseya update.

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Security Affairs

OCTOBER 12, 2019

The group that has been active since late 2015 targeted businesses worldwide to steal payment card information. In August 2018, three members of the notorious cybercrime gang have been indicted and charged with 26 felony counts of conspiracy, wire fraud, computer hacking, access device fraud and aggravated identity theft.

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Security Affairs

APRIL 10, 2019

That file was delivered via malscam campaigns around the world and its source-code is obfuscated in order to evade antivirus detection and complicate its analysis. When the malware is executed without any restrictions, i.e., upon a non-virtualized environment, some information from the victim’s computer is send to C2 server.

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Security Affairs

MAY 29, 2019

su”, using an SSL encrypted communication, and stores them in “C:UsersPublic” path: “ rtegre.exe ” and “ wprgxyeqd79.exe Analyzing it in depth, we discover it actually is the RMS (Remote Manipulator System) client by TektonIT , encrypted using the MPress PE compressor utility, a legitimate tool, to avoid antivirus detection.

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Thales Cloud Protection & Licensing

AUGUST 11, 2021

Be it health care or information security, it reasonably attempts to take actions in advance. Too many businesses cannot continue their activities until they recover the data encrypted by ransomware. Many collaborative platforms can help you recover the data encrypted by ransomware. Yes, data is a critical asset.

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CyberSecurity Insiders

NOVEMBER 25, 2021

5 Cyber Security Best Practices to Protect Your Business Data. Today, any company can fall victim to cybercrime, which has become a major problem around the world. That’s why large, medium-sized, and small businesses need to become more proactive in their approach to cyber security. . . Source [link]. Back Up Your Data.

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eSecurity Planet

DECEMBER 3, 2021

Here are the top Twitter accounts to follow for the latest commentary, research, and much-needed humor in the ever-evolving information security space. Brian Krebs is an independent investigative reporter known for his coverage of technology, malware , data breaches , and cybercrime developments. Brian Krebs | @briankrebs.

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Security Affairs

APRIL 14, 2023

The researchers discovered that the samples contain a self-delete mechanism which is invoked once the victim’s device is encrypted. antivirus products), deleting shadow copies, and finally encrypting the files on the targeted systems. The group threatens to ban every affiliate who does leak samples. reads the screenshot.

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SecureList

MAY 11, 2023

Trend 2: Driver abuse Abusing a vulnerable driver for malicious purposes may be an old trick in the book, but it still works well, especially on antivirus (AV) drivers. Use security solutions that are tailored protecting their infrastructure from various threats, including anti-ransomware tools , targeted attack protection , EDR , and so on.

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Spinone

JANUARY 9, 2019

Tried and true means to steal information What exactly is “phishing”? Having an effective antivirus solution protecting end user devices is a must. Antivirus solutions are getting more powerful and are incorporating next generation features and intelligence into malware detection and end user device protection.

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CyberSecurity Insiders

NOVEMBER 1, 2021

And, the system must be intuitive and convenient, so executives remain within its workflows and processes without straying to other systems and creating security gaps. Jon Clemenson, director of information security, TokenEx. Increasingly, traditional sandboxing and antivirus software aren’t enough.

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ForAllSecure

JUNE 21, 2022

Hanslovan: So we noticed it was a trend like all things cat and mouse base and hackers were really getting ticked off that their malicious payloads were getting caught by the antivirus. Why don't I use the trusted ones that I'll get by antivirus. So good tactic it can be deployed both ways cybercrime and more traditional espionage.

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Ransomware Marketing Software Antivirus 52