Krebs on Security

MARCH 2, 2020

A large number of French critical infrastructure firms were hacked as part of an extended malware campaign that appears to have been orchestrated by at least one attacker based in Morocco, KrebsOnSecurity has learned.

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DNS Penetration Testing Malware Hacking 252

Security Affairs

JUNE 22, 2021

Experts defined DirtyMoe as a complex malware that has been designed as a modular system. The Windows botnet has been active since late 2017, it was mainly used to mine cryptocurrency, but it was also involved in DDoS attacks in 2018. “Both PurpleFox and DirtyMoe are still active malware and gaining strength.”

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DNS Cryptocurrency Internet Internet 126

Security Affairs

FEBRUARY 1, 2019

Security experts at Cybaze – Yoroi ZLab have analyzed a new sample of the AdvisorsBot malware, a downloader that was first spotted in August 2018. As usual, the malware looks like a legitimate e-mail attachment, named as “invoice.doc”. Figure 3 – Piece of VBS script that starts malware infection. DLL Analysis.

Malware 84

Malware DNS Social Engineering Advertising 84

Malwarebytes

APRIL 25, 2023

From there, further research identified a DNS signature not related to Pupy components. Infoblox claims that this unique DNS signature for Decoy Dog “ matches less than 0.0000027% of the 370 million active domains on the internet ” Pupy itself has been seen in numerous nation state attacks and other serious compromises.

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DNS Mobile Malware Internet 65

SecureList

JULY 25, 2022

Rootkits are malware implants which burrow themselves in the deepest corners of the operating system. One of our industry partners, Qihoo360, published a blog post about an early variant of this malware family in 2017. Introduction. Affected devices. an evil maid attack scenario).

Firmware 144

Firmware DNS Malware Technology 144

SecureList

DECEMBER 14, 2023

During an incident response performed by Kaspersky’s Global Emergency Response Team ( GERT ) and GReAT, we uncovered a novel multiplatform threat named “NKAbuse” The malware utilizes NKN technology for data exchange between peers, functioning as a potent implant, and equipped with both flooder and backdoor capabilities.

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Malware Architecture DNS DDOS 104

Security Affairs

JANUARY 24, 2019

A still ongoing spam campaign that has been active during the last months has been distributing the Redaman banking malware. Experts at Palo Alto Networks continue to monitor an ongoing spam campaign that has been distributing the Redaman banking malware. ” reads the analysis published by Palo Alto Networks. Pierluigi Paganini.

Banking 85

Banking Malware Advertising DNS 85

Webroot

MARCH 29, 2021

An endpoint DNS solution could have stopped the Trojanized Orion version by refusing to resolve the domain names of the command-and-control servers, again disrupting the infection to the point that no real damage could be done. DNS security solutions are one way of addressing this risk. The “next one” will look different.

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Hacking DNS Firewall Malware 116

Security Affairs

JULY 23, 2019

The attackers demonstrated an increasing level of sophistication across the years, they used custom-malware and various exploits in their attacks. The backdoor was used in attacks on targeted diplomatic missions in Slovakia, Belgium, Chile, Guatemala and Brazil throughout 2017. ” reads the report published by ESET.

DNS 85

DNS Malware Advertising Manufacturing 85

Krebs on Security

FEBRUARY 26, 2023

Web hosting giant GoDaddy made headlines this month when it disclosed that a multi-year breach allowed intruders to steal company source code, siphon customer and employee login credentials, and foist malware on customer websites. But we do know the March 2020 attack was precipitated by a spear-phishing attack against a GoDaddy employee.

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Hacking Social Engineering Phishing Scams 258

eSecurity Planet

DECEMBER 8, 2023

Domain name service (DNS) attacks threaten every internet connection because they can deny, intercept, and hijack connections. With the internet playing an increasing role in business, securing DNS plays a critical role in both operations and security. Everything You Need to Know.

DNS 112

DNS DDOS Firewall Architecture 112

Security Affairs

JANUARY 13, 2019

Proofpoint analyzed two strains of malware tracked as ServHelper and FlawedGrace distributed through phishing campaigns by the TA505 crime gang. Security researchers at Proofpoint researchers discovered two strains of malware tracked as ServHelper and FlawedGrace distributed through phishing campaigns by the TA505 crime gang.

Malware 89

Malware DNS Financial Services Retail 89

Krebs on Security

FEBRUARY 24, 2023

First identified in 2017 by the security firm Deep Instinct , Mylobot employs a number of fairly sophisticated methods to remain undetected on infected hosts, such as running exclusively in the computer’s temporary memory, and waiting 14 days before attempting to contact the botnet’s command and control servers. com on Mar.

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Accountability Advertising Marketing Malware 220

Security Affairs

SEPTEMBER 14, 2018

BONDUPDATER is a PowerShell-based Trojan first discovered by FireEye in mid-November 2017 , when OilRig targeted a different Middle Eastern governmental organization.” The malware checks that only one instance of it is running at one time, it also locks files to determine how long the main PowerShell process has been executing.

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DNS Phishing Government Malware 77

SecureList

DECEMBER 1, 2023

To exfiltrate data and deliver next-stage malware, the attackers abuse cloud-based data storage, such as Dropbox or Yandex Disk, as well as a temporary file sharing service. The postinst script contains comments in Russian and Ukrainian, including information about improvements made to the malware, as well as statements by activists.

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Malware Ransomware Encryption Energy and Utilities 90

Security Affairs

JUNE 18, 2020

They use DNS tunneling for stealthier C&C communications, and place execution guardrails on the malicious components to hide the malware from security researchers.” Experts also observed attackers using a DNS downloader that was designed for long-term, covert access to the target machine.

DNS 79

DNS Advertising Spyware Software 79

Security Affairs

NOVEMBER 11, 2022

The group is also the author of the NotPetya ransomware that hit hundreds of companies worldwide in June 2017, causing billions worth of damage. In April, Sandworm targeted energy facilities in Ukraine with a new strain of the Industroyer ICS malware (INDUSTROYER2) and a new version of the CaddyWiper wiper.

Ransomware 82

Ransomware Telecommunications DNS Hacking 82

Krebs on Security

JULY 18, 2022

re network uses at least two free VPN services to lure its users to install a malware-like software that achieves persistence on the user’s computer,” the researchers wrote. “Using the internal router, it would be possible to poison the DNS cache of the LAN router of the infected node, enabling further attacks.”

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VPN Computers and Electronics Antivirus Software 294

Security Affairs

OCTOBER 29, 2020

In early 2019, researchers spotted a new TrickBot backdoor framework dubbed Anchor that was using the anchor_dns tool for abusing the DNS protocol for C2 communications. ransomware, that was first spotted in late 2017 and was available for sale on the open market as of August 2018.

Healthcare 142

Healthcare Ransomware Cybercrime DNS 142

Krebs on Security

APRIL 2, 2019

Canadian police last week raided the residence of a Toronto software developer behind “ Orcus RAT ,” a product that’s been marketed on underground forums and used in countless malware attacks since its creation in 2015. 2017 analysis of the RAT. An advertisement for Orcus RAT.

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Advertising Malware Marketing Software 214

Security Affairs

MAY 27, 2020

ShuangQiang is financially motivated, it has been active since 2017 targeting Windows computers with MBR and VBR bootkits , and installing malicious drivers for financial gain and hijack web traffic to e-commerce sites. “Recently, our DNS data based threat monitoning system DNSmon flagged a suspicious domain pro.csocools.com. .

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Advertising DNS Software Malware 97

SecureList

AUGUST 30, 2023

Both infection methods resulted in the same malware (the DeathNote downloader), which uploaded the target’s information and retrieved the next-stage payload at the discretion of the C2 (Command and Control) server. It’s thought that the malware was spread through a vulnerability in the software.

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Malware Spyware Cryptocurrency Government 73

Security Affairs

MARCH 4, 2019

Necurs botnet is currently the second largest spam botnet , it has been active since at least 2012 and was involved in massive campaigns spreading malware such as the Locky ransomware , the Scarab ransomware , and the Dridex banking Trojan. It has been estimated that there are about 90,000 “orphaned” Necurs bots in the wild.

DNS 78

DNS Banking Advertising Ransomware 78

Security Affairs

AUGUST 8, 2018

Ramnit is one of the most popular banking malware families in existence today, it was first spotted in 2010 as a worm, in 2011, its authors improved it starting from the leaked Zeus source code turning the malware into a banking Trojan. The second STAGE-1 C&C server is used for controlling malware via an encrypted connection.

Malware 46

Malware DNS Encryption Banking 46

SecureList

JANUARY 13, 2022

The group seems to work more like a unit within a larger formation of Lazarus attackers, with the ability to tap into its vast resources: be it malware implants, exploits, or infrastructure. We found they generally stick to CVE-2017-0199, using it again and again before trying something else. Malware infection. Infection chain.

Cryptocurrency 127

Cryptocurrency Malware Accountability Banking 127

Security Affairs

AUGUST 7, 2019

group_a : from 2016 to August 2017 2. group_b : from August 2017 to January 2018 3. T1388) , from group_b to group_d time frames OilRig used real Compromised User Accountsextracted by Malware (rif. Many techniques have been used since August 2017 such as: Command Line Interface (rif. Exploit Technique Over Time.

Computers and Electronics 79

Computers and Electronics Penetration Testing DNS Phishing 79

Security Affairs

DECEMBER 11, 2018

The Novidade exploit kit leverages cross-site request forgery (CSRF) to change the Domain Name System (DNS) settings of SOHO routers and redirect traffic from the connected devices to the IP address under the control of the attackers. The exploit kit blindly attacks the detected IP address with all its exploits. .

DNS 90

DNS Advertising Firmware Banking 90

eSecurity Planet

SEPTEMBER 7, 2021

Or they can package malware that can be directly installed on your machine or come through an email attachment disguised as something trustworthy , like a document or link from your boss. Tracking recent trends in malware code and technique updates. Zero day threats are a major problem for businesses today.

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Antivirus Software Risk Malware 136

Security Affairs

DECEMBER 4, 2018

According to our estimate, CoAP can reach up to 32 times (32x) amplification factor, which is roughly between the amplification power of DNS and SSDP.” ” Experts highlighted the risks that malware in the next future could abuse M2M protocols for malicious activity. ” concludes the report.

IoT 84

IoT Internet Internet Advertising 84

eSecurity Planet

FEBRUARY 16, 2021

Malware, short for “malicious software,” is any unwanted software on your computer that, more often than not, is designed to inflict damage. Since the early days of computing, a wide range of malware types with varying functions have emerged. Best Practices to Defend Against Malware. Jump ahead: Adware. RAM scraper.

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Malware Adware Spyware Antivirus 105

Security Affairs

APRIL 9, 2019

Too many times turned into fully-featured malware implants by unethical hackers and cyber criminals. Exploring the malware code, we detected multiple evidence indication of the possible belonging malware family: LimeRAT. Technical Analysis. The first one targets the Windows versions lower than 8.1, C2 retrieval. 1986[@gmail[.com”,

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Malware Advertising DNS Antivirus 70

Fox IT

JANUARY 12, 2021

The earliest and longest lasting intrusion by this threat we observed, was at a company in the semiconductors industry in Europe and started early Q4 2017. observed Q2 2017 Cobalt Strike v3.12, observed Q3 2018 Cobalt Strike v3.14, observed Q2 2019. The DNS-responses weren’t logged. Credential access (TA0006).

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VPN Accountability Passwords DNS 68

Krebs on Security

SEPTEMBER 6, 2021

The Web site in 2015 for the “Manipulaters Team,” a group of Pakistani hackers behind the dark web identity “Saim Raza,” who sells spam and malware tools and services. “I can see you post on hard time criminals we are not criminals, at least it was not in our knowledge.”

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Software Phishing Cybercrime Accountability 231

Security Affairs

JUNE 14, 2023

This article will focus on the widespread and highly persistent malware injector campaign “Balada,” which has reportedly infected over 1 million individual websites by exploiting weaknesses in Elementor Pro, WooCommerce, and several other WordPress plugins. Balada is not an overly shy malware campaign. What is Balada? Windows NT 10.0;

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Malware DNS Software Penetration Testing 81

eSecurity Planet

FEBRUARY 3, 2021

This update touches on the newly detected malware , attack vectors to guard against, and why the targeting of security vendors is a critical development in cybersecurity. Before jumping into the technical details regarding each new malware detected and proper safeguards, here is a brief look at the events to date: Sep 2019.

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Software Malware Authentication Penetration Testing 62

Security Affairs

NOVEMBER 12, 2019

The domain validtree.com is registered through namecheap.com on 2017-12-07T15:55:27Z but recently renewed on 2019-10-16T05:35:18Z. The two Macros decoded a Javascript payload acting as a drop and execute by using a well-known strategy as described in: “ Frequent VBA Macros used in Office Malware ”. Image3: Redirecting script.

Cybercrime 41

Cybercrime Computers and Electronics Penetration Testing Malware 41

Security Boulevard

JUNE 15, 2023

Stealers" are a kind of malware designed to run on an endpoint post-compromise, while their primary features center on the theft of user data. Together with our colleagues at InQuest, we present a deep dive technical analysis of the malware. The same way you do in the real world – the market becomes flooded.

Cryptocurrency 52

Cryptocurrency Password Management Malware DNS 52