Krebs on Security

MARCH 28, 2021

New data suggests someone has compromised more than 21,000 Microsoft Exchange Server email systems worldwide and infected them with malware that invokes both KrebsOnSecurity and Yours Truly by name. Oddly, none of the several dozen antivirus tools available to scan the file at Virustotal.com currently detect it as malicious.

Hacking 351

Hacking Cybercrime DNS Antivirus 351

Security Affairs

APRIL 21, 2024

The Akira ransomware has been active since March 2023, the threat actors behind the malware claim to have already hacked multiple organizations in multiple industries, including education, finance, and real estate. The Akira ransomware operators implement a double extortion model by exfiltrating victims’ data before encrypting it.

Ransomware 106

Ransomware Encryption Antivirus VPN 106

Security Affairs

JANUARY 1, 2024

The Cactus ransomware group claims to have hacked Coop, one of the largest retail and grocery providers in Sweden. The Cactus ransomware group claims to have hacked Coop and is threatening to disclose a huge amount of personal information, over 21 thousand directories. Threat actors have published ID cards as proof of hack.

Retail 125

Retail Ransomware Encryption Hacking 125

Security Affairs

AUGUST 31, 2021

Recently emerged LockFile ransomware family LockFile leverages a novel technique called intermittent encryption to speed up encryption. Sophos researchers discovered that the group is now leveraging a new technique called “intermittent encryption” to speed up the encryption process.

Encryption 107

Encryption Ransomware Financial Services Antivirus 107

Security Affairs

FEBRUARY 19, 2024

The gang also published several pictures of passports and company documents as proof of the hack. Once the malware has escalated the privileges on a machine, the threat actors use a batch script to uninstall popular antivirus solutions installed on the machine. Cactus Ransomware has just posted Schneider Electric.

Ransomware 104

Ransomware Digital transformation Retail Antivirus 104

Security Affairs

JANUARY 8, 2021

Multiple threat actors have recently started using the Ezuri memory loader as a loader to executes malware directly into the victims’ memory. According to researchers from AT&T’s Alien Labs, malware authors are choosing the Ezuri memory loader for their malicious codes. ” concludes the report.

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Malware Encryption Antivirus Passwords 136

SecureWorld News

MARCH 12, 2024

When a website gets hacked, the aftermath can be expensive and long-lasting, and the recovery process is often extremely difficult. But what happens if a hack has already occurred? Next, let's discuss the steps to take to recover from a hack. So, instead of panicking, relax and focus on fixing your hacked WordPress site.

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Hacking Passwords Backups Firewall 90

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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Ransomware Hacking Encryption Penetration Testing 243

Security Affairs

JUNE 11, 2021

Experts spotted a new mysterious malware that was used to collect a huge amount of data, including sensitive files, credentials, and cookies. Threat actors used custom malware to steal data from 3.2 NordLocker experts speculate the malware campaign leveraged tainted Adobe Photoshop versions, pirated games, and Windows cracking tools.

Malware 113

Malware Computers and Electronics Software Financial Services 113

Security Affairs

JANUARY 6, 2023

Antivirus firm Bitdefender released a decryptor for the MegaCortex ransomware allowing its victims to restore their data for free. Antivirus firm Bitdefender released a decryptor for the MegaCortex ransomware , which can allow victims of the group to restore their data for free. SecurityAffairs – hacking, ransomware).

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Ransomware Antivirus Encryption Backups 96

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. The infection chain. Cryptolocker and exploit components.

Malware 99

Malware Computers and Electronics Encryption Ransomware 99

Security Affairs

AUGUST 31, 2022

A malware campaign tracked as GO#WEBBFUSCATOR used an image taken from NASA’s James Webb Space Telescope (JWST) as a lure. Securonix Threat researchers uncovered a persistent Golang-based malware campaign tracked as GO#WEBBFUSCATOR that leveraged the deep field image taken from the James Webb telescope. Pierluigi Paganini.

Malware 84

Malware DNS Antivirus Encryption 84

The Last Watchdog

SEPTEMBER 27, 2021

Phishing scams, malware, ransomware and data breaches are just some of the examples of cyberthreats that can devastate business operations and the protection of consumer information. It foreshadowed how encryption would come to be used as a foundation for Internet commerce – by companies and criminals. The Creeper Virus (1971).

Cybersecurity 140

Cybersecurity Hacking Identity Theft Technology 140

Security Affairs

DECEMBER 19, 2022

The main reasons to rewrite malware in Rust is to have lower AV detection rates, compared to malware written in most common languages, and to target multiple architectures. ” Upon executing the malware, the Rust binary prompts an error requiring a password to be passed as an argument. SecurityAffairs – hacking, malware).

Ransomware 126

Ransomware Encryption Healthcare Education 126

Security Affairs

MAY 25, 2020

Ransomware encrypts from virtual machines to evade antivirus. Ragnar Locker deploys Windows XP virtual machines to encrypt victim’s files, the trick allows to evaded detection from security software. Mounting all the shared drives to encrypt. Custom Ragnar Locker ransom note (Source: Sophos).

Encryption 100

Encryption Ransomware Energy and Utilities Advertising 100

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. SecurityAffairs – hacking, DLL hijacking). To nominate, please visit:?

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Ransomware Antivirus Malware Encryption 103

Security Affairs

AUGUST 26, 2019

A new ransomware, called Nemty ransomware, has been discovered over the weekend by malware researchers. The name of the ransomware comes after the extension it adds to the encrypted file names, the malicious code also deletes their shadow copies to make in impossible any recovery procedure. SecurityAffairs – Nemty ransomware, hacking).

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Ransomware Malware Antivirus Encryption 93

Security Affairs

JULY 8, 2022

The security firm states that the AstraLocker decryptor works for ransomware versions based on the Babuk malware that appends the.Astra or.babyk extensions to the name of the encrypted files. “Be sure to quarantine the malware from your system first, or it may repeatedly lock your system or encrypt files.

Ransomware 123

Ransomware Encryption Malware Accountability 123

SecureWorld News

AUGUST 8, 2022

Cybersecurity and Infrastructure Security Agency (CISA) and the Australian Cyber Security Centre (ACSC) released a joint Cybersecurity Advisory (CSA) providing details on the top malware strains of 2021. The top malware strains in 2021 included remote access Trojans (RATs), banking Trojans, information stealers, and ransomware.

Malware 86

Malware Banking Healthcare Penetration Testing 86

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.

Ransomware 91

Ransomware Antivirus Backups Malware 91

Security Affairs

DECEMBER 18, 2023

Info stealers, the type of malware with its purpose in the name, can cripple businesses and everyday users alike. Info stealers, also known as information stealers, are a type of malicious software (malware) designed to covertly collect sensitive and personal information from a victim’s computer or network.

Banking 115

Banking Cybercrime Malware Accountability 115

Security Affairs

MARCH 13, 2021

Kaspersky researchers spotted a new variant of the XCSSET Mac malware that compiled for devices running on Apple M1 chips. The malware also allows attackers to capture screenshots and exfiltrate stolen documents to the attackers’ server. Recently experts spotted other malware specifically designed to infect Mac running on M1 chips.

Malware 105

Malware Adware Architecture Antivirus 105

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.

Ransomware 91

Ransomware Healthcare Antivirus Encryption 91

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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Ransomware System Administration Antivirus Malware 117

Security Affairs

NOVEMBER 19, 2022

The DEV-0569 group carries out malvertising campaigns to spread links to a signed malware downloader posing as software installers or fake updates embedded in spam messages, fake forum pages, and blog comments. The downloader, tracked as BATLOADER , shares similarities with another malware called ZLoader. Pierluigi Paganini.

Ransomware 131

Ransomware Malware Antivirus Phishing 131

Security Affairs

MAY 11, 2021

“The Australian Cyber Security Centre (ACSC) is aware an ongoing ransomware campaign utilising the Avaddon Ransomware malware. The ACSC also provided the following recommendations: Patch operating systems and applications, and keep antivirus signatures up to date. SecurityAffairs – hacking, Avaddon). Pierluigi Paganini.

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Ransomware Backups Antivirus DDOS 128

The Last Watchdog

MARCH 6, 2021

Related: Poll confirms rise of Covid 19-related hacks. A VPN encrypts all internet traffic so that it is unreadable to anyone who intercepts it. Use antivirus software. Your devices need excellent antivirus software to act as the next defense line by blocking and detecting known malware. Secure home router.

VPN 214

VPN Firewall Antivirus Passwords 214

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.

Ransomware 77

Ransomware VPN Antivirus Encryption 77

NopSec

AUGUST 2, 2017

Antivirus software is one of the oldest and the most ever present security control against malware and various types of malicious software. It’s historically focused on blocking viruses, then eventually evolved into blocking all sort of other malware. “I I have antivirus so I’m covered” used have some legitimate weight to it.

Antivirus 40

Antivirus Software Penetration Testing Technology 40

Krebs on Security

APRIL 22, 2019

The owner of a Swedish company behind a popular remote administration tool (RAT) implicated in thousands of malware attacks shares the same name as a Swedish man who pleaded guilty in 2015 to co-creating the Blackshades RAT , a similar product that was used to infect more than half a million computers with malware, KrebsOnSecurity has learned.

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Advertising Antivirus Software Malware 194

SecureWorld News

MARCH 29, 2024

Malvertising acts as a vessel for malware propagation. Scammers and malware operators are increasingly adept at mimicking popular brands in their ad snippets, which makes it problematic for the average user to tell the wheat from the chaff. One of the biggest pitfalls with malvertising is how difficult it can be to detect.

Cybercrime 83

Cybercrime Advertising Engineering Antivirus 83

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 ScrubCrypt crypter is available for sale on hacking forums, it allows securing applications with a unique BAT packing method.

Antivirus 90

Antivirus Encryption Hacking Cybercrime 90

Security Affairs

AUGUST 9, 2022

Some indirect evidence that links the attacks to a China-linked group is the use of hacking utilities that are popular in China, the use of a second-stage CnC server located in China, and the fact that the CnC server registration information includes an email address in the Chinese domain 163.com ” concludes the report.

Antivirus 99

Antivirus Encryption Malware Hacking 99

Security Affairs

AUGUST 20, 2019

Your IP address represents your digital identity online, hacking it not only allows attackers to access your device or your accounts, but it may cause even bigger damage. Cybercriminals are interested in hacking your IP address for various reasons. The hacked and stolen IPs are often used for carrying out illegal activities.

Hacking 91

Hacking VPN Internet Internet 91

Security Affairs

APRIL 30, 2021

.” The Portdoor backdoor implements multiple functionalities, including the ability to do reconnaissance, target profiling, delivery of additional payloads, privilege escalation, process manipulation static detection antivirus evasion, one-byte XOR encryption, AES-encrypted data exfiltration. ” continues the report.

Phishing 130

Phishing Malware Antivirus Encryption 130

Security Affairs

JANUARY 31, 2020

Emotet , the most widespread malware worldwide and Ryuk , a ransomware type, are growing threats and real concerns for businesses and internet users in 2020. This study also concludes that a total of 377 Portuguese domains to spread different types of malware in the same period. SecurityAffairs – malware, hacking).

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Malware Retail Advertising Antivirus 109

Security Affairs

SEPTEMBER 20, 2020

“They are also urged to read the NCSC’s newly-updated guidance on mitigating malware and ransomware attacks , and to develop an incident response plan which they regularly test.” SecurityAffairs – hacking, education institutions). ” reads the advisory. backup servers, network shares, servers, auditing devices).

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Education Ransomware Antivirus Backups 145