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ASEC BLOG
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The Weak Link Identified by AI: October 2026, When the Outer Contact Point Collapsed
Security Blind Spots Identified by AI The large-scale data breaches disclosed in quick succession in South Korea and Japan in October 2026 mostly originated not from internal core systems, but from peripheral entry points such as externally exposed web services, app backend APIs, and outsourced SaaS (services provided by third-party vendors via the cloud, such […]
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ASEC BLOG
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Security Issues in the Korean & Global Financial Sector in September 2026
Statistics on Malware Distributed to the Financial Sector In Attack Stage 1, phishing (attacks that trick users into revealing information) had the highest rate at 2.1, Up from 1.8 The previous month. In Attack Stage 2, “Dropper/Downloader” (a type that downloads additional malware) was the most common at 1.1, Though this was a decrease from […]
Security Issues in the Korean & Global Financial Sector in September 2026
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ASEC BLOG
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September 2026 Threat Trend Report on Ransomware
Purpose and Scope This report summarizes the quantity of new ransomware samples collected, the number of compromised systems, and statistics on targeted businesses during the month of September 2026, as well as major Korean & global ransomware issues. The analysis is based on data collected through ATIP (AhnLab Threat Intelligence Platform) and AhnLab Smart Defense, […]
September 2026 Threat Trend Report on Ransomware
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ASEC BLOG
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September 2026 Dark Web Breach Incident Trend Report
Note The September 2026 Dark Web Breach Incident Trend Report focuses on data breach cases and the sale of initial access credentials posted on the deep web and dark web forums. The report explicitly states that the accuracy of some of its content cannot be fully verified due to the nature of the sources. Major […]
September 2026 Dark Web Breach Incident Trend Report
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ASEC BLOG
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September 2026 Dark Web Threat Actor Trend Report
Note The September 2026 Dark Web Threat Actor Trend Report focuses on threat actors active on the deep web and dark web, as well as publicly reported cyberattack incidents. It is noted that the factual accuracy of some content cannot be independently verified. Major Issues Some hacktivist groups claimed responsibility for DDoS attacks targeting the […]
September 2026 Dark Web Threat Actor Trend Report
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ASEC BLOG
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August 2026 Threat Trend Report on Ransomware
Purpose and Scope This report summarizes statistics on new ransomware samples, affected systems, and statistics on targeted businesses collected during the month of August 2026, as well as major Korean & Global ransomware issues. Statistics on targeted businesses were compiled based on the time when publicly available information from ransomware groups’ DLS (Dedicated Leak Sites, […]
August 2026 Threat Trend Report on Ransomware
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ASEC BLOG
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Security Issues in the Korean & Global Financial Sector in August 2026
Statistics on Malware Distributed to the Financial Sector Malware Distribution Trends. In Attack Stage 1, phishing was the highest at 2.1, Up from 1.8 The previous month. In Attack Stage 2, dropper/downloader was the highest at 1.1, Down from 3.2 The previous month. In Stage 3 of the attack, Infostealers were the most prevalent at […]
Security Issues in the Korean & Global Financial Sector in August 2026
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ASEC BLOG
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August 2026 Dark Web Breach Incident Trend Report
Note In August 2026, widespread instances of database leaks, the sale of internal data, and the trading of initial access privileges were observed on dark web and deep web forums. Due to the nature of the sources, it was difficult to fully verify the accuracy of some posts. Major Issues ShinyHunters continued to make claims […]
August 2026 Dark Web Breach Incident Trend Report
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ASEC BLOG
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August 2026 Dark Web Threat Actor Trend Report
Note The August 2026 Dark Web Threat Actor Trend Report focuses on trends among threat actors—including hacktivists—active on the deep web and dark web. It is noted that the accuracy of some information could not be verified. Major Issues NoName057(16), BD Anonymous, and Dark Storm Team claimed responsibility for repeated DDoS attacks targeting websites of […]
August 2026 Dark Web Threat Actor Trend Report
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ASEC BLOG
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Ransom & Dark Web Issues Week 1, September 2026
ASEC Blog publishes Ransom & Dark Web Issues Week 1, September 2026 ZaWoo Data Extortion Attacks Against Multiple Organizations Worldwide Black X Ransomware Attack on a South Korean Automotive Parts Manufacturer Internal Data of a South Korean Asset Management and Investment Firm Offered for Sale
Ransom & Dark Web Issues Week 1, September 2026
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Malwarebytes
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Heights Finance data breach: What customers need to know
Heights Finance Holdings’ online data breach notification says an unauthorized party accessed a third-party cloud platform containing customer data, potentially exposing highly sensitive personal, banking, and identity information. Heights Finance is a consumer lender that offers personal installment loans. Reportedly, the company filed a report with Texas regulators mentioning 734,828 affected people, though that figure should not automatically be read as a confirmed nationwide total, since
Heights Finance data breach: What customers need to know
Heights Finance Holdings’ online data breach notification says an unauthorized party accessed a third-party cloud platform containing customer data, potentially exposing highly sensitive personal, banking, and identity information.
Heights Finance is a consumer lender that offers personal installment loans. Reportedly, the company filed a report with Texas regulators mentioning 734,828 affected people, though that figure should not automatically be read as a confirmed nationwide total, since Heights Finance operates dozens of personal loan companies across Alabama, Tennessee, Georgia, Texas, and South Carolina.
The company is associated with the former CURO Management business and related brands. The breach notice covers not only some Heights Finance customers, but potentially people connected to certain current or former CURO-related brands.
On May 7, Heights Finance discovered that an unauthorized party had gained access to a cloud-based platform run by a third party and used to store certain customer information. The company says its investigation found that the intruder may have viewed or copied information in that environment.
Heights says affected people may include:
- People who received a loan through Heights Finance.
- People who inquired about or applied for a loan product, including through a third party.
- Some customers of former parent company CURO Management and its present or former related brands.
What makes the incident especially concerning is the nature of the potentially exposed records, which can include the combination of information criminals need to impersonate someone, target their bank accounts, or create highly convincing phishing attempts.
Potentially exposed data includes:
- Contact information: Name, home address, phone number, and email address.
- Financial information: Account details, bank name, bank account number, routing number, and related financial information.
- Government identifiers: Social Security number (SSN), tax identification number, driver’s license number, or state ID number.
- Other personal data: Date of birth and personal circumstances voluntarily disclosed during customer service interactions.
The combination of a Social Security number, date of birth, address, and bank account details can create a much more serious risk than a breach exposing only email addresses. It can support identity fraud, financial fraud, account takeover attempts, and tailored social engineering scams.
The personal circumstances customers may have shared with support staff could also make scams more persuasive or potentially more harmful, particularly for people who discussed financial distress, repayment problems, or other sensitive subjects.
What affected customers should do
People who receive a letter from Heights Finance should follow the company’s instructions and enroll in the offered protection service. Exact instructions can be found on Heights Finance’s website.
Since people who were not actual customers could also be affected, there may be some uncertainty about whether someone’s information was included in the data breach. If you believe you fall into one of the listed groups but do not receive a notice, use contact details published by Heights Finance for inquiries. Do not use a number provided in an unexpected email, text, phone call, or even sponsored search result to ask whether your information was involved.
More general advice on what to do is available in our article Involved in a data breach? Here’s what you need to know.
What do cybercriminals know about you?
Use Malwarebytes’ free Digital Footprint scan to see whether your personal information has been exposed online.
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ASEC BLOG
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July 2026 Dark Web Breach Incident Trend Report
Note The July 2026 Dark Web Breach Incident Trend Report was compiled based on data breach cases posted on deep web and dark web forums. Due to the nature of some posts, it is difficult to fully verify their accuracy; some posts related to South Korea included AI-generated false data or cases where it could […]
July 2026 Dark Web Breach Incident Trend Report
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ASEC BLOG
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July 2026 Dark Web Threat Actor Trend Report
Note The July 2026 Dark Web Threat Actor Trend Report focuses on trends among threat actors—including hacktivists—active on the deep web and dark web. It is explicitly noted that the factual accuracy of some content could not be verified. Major Issues Handala claimed to have compromised the core infrastructure of an Internet service provider in […]
July 2026 Dark Web Threat Actor Trend Report
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ASEC BLOG
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June 2026 Security Issues in Korean & Global Financial Sector
Statistics on Malware Distributed to the Financial Sector In the June threat analysis for the financial sector, phishing was the most prevalent attack method in Attack Stage 1, while droppers/downloaders (distribution tools that download additional malware) were the most prevalent in Attack Stage 2. Infostealers were identified in the third attack stage, indicating that multi-stage […]
June 2026 Security Issues in Korean & Global Financial Sector
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ASEC BLOG
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June 2026 Dark Web Breach Incident Trend Report
Note The June 2026 Dark Web Breach Incident Trend Report is based on major data breach cases posted on the deep web and dark web forums. Due to the nature of some sources, it was difficult to fully verify the accuracy of certain information, so the report includes content that requires further verification. Major Issue […]
June 2026 Dark Web Breach Incident Trend Report
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ASEC BLOG
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May 2026 Dark Web Threat Actor Trend Report
Notes the May 2026 Dark Web Threat Actor Trend Report summarizes the trends of threat actors and hacktivists operating on the deep web and dark web. some statements are not factually verifiable. Major Issues hacktivist activity targeting the South Korean Region was concentrated. some hacktivist groups claimed DDoS attacks against the website of the South […]
May 2026 Dark Web Threat Actor Trend Report
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Security Intelligence
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Black Friday chaos: The return of Gozi malware
On November 29th, 2024, Black Friday, shoppers flooded online stores to grab the best deals of the year. But while consumers were busy filling their carts, cyber criminals were also seizing the opportunity to exploit the shopping frenzy. Our system detected a significant surge in Gozi malware activity, targeting financial institutions across North America. The Black Friday connection Black Friday creates an ideal environment for cyber criminals to thrive. The combination of skyrocketing transac
Black Friday chaos: The return of Gozi malware
On November 29th, 2024, Black Friday, shoppers flooded online stores to grab the best deals of the year. But while consumers were busy filling their carts, cyber criminals were also seizing the opportunity to exploit the shopping frenzy. Our system detected a significant surge in Gozi malware activity, targeting financial institutions across North America.
The Black Friday connection
Black Friday creates an ideal environment for cyber criminals to thrive. The combination of skyrocketing transaction volumes, a surge in online activity and often lax security awareness among users provides fertile ground for launching attacks. Gozi malware, a well-known banking Trojan, exploits this seasonal chaos to target unsuspecting users and financial institutions alike.
This year’s Black Friday activity was particularly concerning, with a notable increase in web-inject attacks. These sophisticated techniques compromised online banking sessions, enabling the theft of credentials, financial information and other sensitive data.
The campaign is not expected to stop there. With the subsequent year-end shopping rush, Gozi malware is poised to continue its onslaught. Cyber criminals are likely to capitalize on the desperation of last-minute shoppers seeking the best holiday deals, amplifying the malware’s reach and impact.
These ongoing attacks emphasize the need for vigilance and proactive security measures. Whether you’re a consumer enjoying the convenience of online shopping or a business managing increased transaction volumes, understanding the evolving tactics of cyber criminals is critical to staying ahead of the threat.
What is Gozi malware?
Gozi, also known as Ursnif and ISFB, is a modular banking Trojan that has been active since the mid-2000s. It is infamous for its ability to steal banking credentials, monitor user activity and execute advanced web-injects during online banking sessions. Over the years, it has evolved to include features like anti-debugging mechanisms and encrypted communication and is also used for targeted attacks on specific regions and financial institutions.
Observations from our system
During Black Friday, our telemetry revealed the following trends:
- Targeted campaigns: Gozi operators appeared to focus on North American banks, aligning their campaigns with the peak shopping hours.
- Increase in attack volume: The malware’s web-inject functionality was heavily used, indicating a rise in compromised banking sessions.
Why the surge?
The Black Friday spike in Gozi activity can be attributed to:
- Volume of transactions: The sheer number of financial transactions increases the probability of successful attacks.
- Weakened defenses: Many businesses prioritize frictionless user experience, uptime and sales during Black Friday, potentially delaying or weakening their security measures.
- Human behavior: Consumers are more likely to overlook suspicious activity when rushing to grab deals.
What we found
The provided script demonstrates a sophisticated web injection attack used to compromise online banking sessions. It dynamically injects malicious code into the legitimate banking page, allowing attackers to manipulate the session without the victim’s knowledge. The malicious script operates in the background to steal sensitive data, such as credentials, and is designed to evade detection by immediately removing itself from the page after execution. By blending with the legitimate page and erasing evidence, the attack becomes nearly invisible to both users and traditional security measures. This highlights the growing sophistication of web-inject attacks and underscores the need for advanced monitoring systems and robust security measures to detect and prevent such threats.
From the screenshot below, it appears that the attacker left minimal evidence, likely attempting to test the mechanism and ensure everything is functioning correctly:
We believe the web-inject is still a work in progress, with potential future updates and enhancements to the code likely.
If you’d like to learn more about Gozi malware, you can find additional information here.
Final thoughts
As cyber criminals continue to exploit global events like Black Friday, staying vigilant is more crucial than ever. The resurgence of Gozi malware activity highlights the importance of proactive security measures for both businesses and individuals. While the current attacks are predominantly targeting North America, we suspect this campaign will soon expand to Europe, leveraging the holiday shopping season to further its impact.
While we enjoy the convenience of online shopping, it’s vital to stay aware of the ever-present cyber threats lurking in the digital landscape. By adopting robust security practices and remaining cautious, we can reduce the risks and protect ourselves against these sophisticated attacks. Cybersecurity is not just a technical challenge—it’s a shared responsibility.
How to avoid Gozi malware
Here are some recommendations to avoid Gozi malware and protect yourself from similar threats:
- Be wary of email links. Exercise caution when opening email attachments or clicking on links, especially if they come from unknown or suspicious sources. Be particularly vigilant for phishing emails that may attempt to trick you into downloading malware.
- Increase your password security. Create strong and unique passwords for all your online accounts, including cryptocurrency exchanges and wallets. Avoid using easily guessable information and consider using a reliable password manager to securely store and manage your passwords.
- Remain vigilant online. Pay attention to any unusual behavior or unexpected requests when accessing websites, especially financial or cryptocurrency-related platforms. If you encounter unexpected pop-ups, requests for additional personal information or changes in website appearance, it could be a sign of a web-inject attempting to deceive you.
- Stay informed about the latest cybersecurity threats and best practices. Familiarize yourself with common techniques used by cyber criminals, such as phishing scams and social engineering, to avoid falling victim to their tactics.
One of the best tools to detect Gozi malware and protect your organization is IBM Security Trusteer Pinpoint Detect. The tool uses artificial intelligence and machine learning to protect digital channels against account takeover and fraudulent transactions and detect user devices infected with high-risk malware. Learn more here.
IOC
/usbank/inj[.]php
/in/sella/sella[.]php
/in/paypal/p[.]php
/in/ebay/ebay[.]php
/in/poste/po[.]php
/in/ubibanca/ub[.]php
/in/amazon/a[.]php
/in/clienti.chebanca/ch[.]php
/in/credem/cr[.]php
frcorporateonline/inj[.]php
hsbcnet/inj[.]php
/lancher/in
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