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SophosLabs 2018 Malware Forecast Shows No Platform Immune from Ransomware

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By peter oluka

Sophos, a global leader in network and endpoint security, today announced its SophosLabs 2018 Malware Forecast, a report that recaps ransomware and other cybersecurity trends based on data collected from Sophos customer computers worldwide during April 1 to Oct. 3, 2017.

One key finding shows that while ransomware predominately attacked Windows systems in the last six months, Android, Linux and MacOS platforms were not immune.

“Ransomware has become platform-agnostic. Ransomware mostly targets Windows computers, but this year, SophosLabs saw an increased amount of crypto-attacks on different devices and operating systems used by our customers worldwide,” said Dorka Palotay, SophosLabs security researcher and contributor to the ransomware analysis in the SophosLabs 2018 Malware Forecast.

The report also tracks ransomware growth patterns, indicating that WannaCry, unleashed in May 2017, was the number one ransomware intercepted from customer computers, dethroning longtime ransomware leader Cerber, which first appeared in early 2016. WannaCry accounted for 45.3 percent of all ransomware tracked through SophosLabs with Cerber accounting for 44.2 percent.

“For the first time we saw ransomware with worm-like characteristics, which contributed to the rapid expansion of WannaCry. This ransomware took advantage of a known Windows vulnerability to infect and spread to computers, making it hard to control,” said Palotay. “Even though our customers are protected against it and WannaCry has tapered off, we still see the threat because of its inherent nature to keep scanning and attacking computers. We’re expecting cyber criminals to build upon this ability to replicate seen in WannaCry and NotPetya, and this is already evident with Bad Rabbit ransomware, which shows many similarities to NotPetya.”

The SophosLabs 2018 Malware Forecast reports on the acute rise and fall of NotPetya, ransomware that wreaked havoc in June 2017.

NotPetya was initially distributed through a Ukranian accounting software package, limiting its geographic impact. It was able to spread via the EternalBlue exploit, just like WannaCry, but because WannaCry had already infected most exposed machines there were few left unpatched and vulnerable.

The motive behind NotPetya is still unclear because there were many missteps, cracks and faults with this attack. For instance, the email account that victims needed to contact attackers didn’t work and victims could not decrypt and recover their data, according to Palotay.

“NotPetya spiked fast and furiously, and did hurt businesses because it permanently destroyed data on the computers it hit. Luckily, NotPetya stopped almost as fast as it started,” said Palotay. “We suspect the cyber criminals were experimenting or their goal was not ransomware, but something more destructive like a data wiper. Regardless of intention, Sophos strongly advises against paying for ransomware and recommends best practices instead, including backing up data and keeping patches up to date.”

Cerber, sold as a ransomware kit on the Dark Web, remains a dangerous threat. The creators of Cerber continuously update the code and they charge a percentage of the ransom that the “middle-men” attackers receive from victims. Regular new features make Cerber not only an effective attack tool, but perennially available to cyber criminals. “This Dark Web business model is unfortunately working and similar to a legitimate company is likely funding the ongoing development of Cerber. We can assume the profits are motivating the authors to maintain the code,” said Palotay.

Android ransomware is also attracting cyber criminals. According to SophosLabs analysis, the number of attacks on Sophos customers using Android devices increased almost every month in 2017.

“In September alone, 30.4 percent of malicious Android malware processed by SophosLabs was ransomware. We’re expecting this to jump to approximately 45 percent in October,” said Rowland Yu, a SophosLabs security researcher and contributor to the SophosLabs 2018 Malware Forecast. “One reason we believe ransomware on Android is taking off is because it’s an easy way for cyber criminals to make money instead of stealing contacts and SMS, popping ups ads or bank phishing which requires sophisticated hacking techniques. It’s important to note that Android ransomware is mainly discovered in non-Google Play markets – another reason for users to be very cautious about where and what kinds of apps they download.”

The SophosLabs report further indicates two types of Android attack methods emerged: locking the phone without encrypting data, and locking the phone while encrypting the data. Most ransomware on Android doesn’t encrypt user data, but the sheer act of locking a screen in exchange for money is enough to cause people grief, especially considering how many times in a single day information is accessed on a personal device. “Sophos recommends backing up phones on a regular schedule, similar to a computer, to preserve data and avoid paying ransom just to regain access. We expect ransomware for Android to continue to increase and dominate as the leading type of malware on this mobile platform in the coming year,” said Yu.


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Ugo Onwuaso is an ICT enthusiast. He believes technology should be used for general good. He holds a Master of Public Administration (MPA) degree from the Lagos state University. Dear Reader, Your support matters. But we believe that technology makes life more exciting and helps improve the lives of people around Nigeria and indeed the world. That is why, we have devoted our energy to independent reportage of technology and finance and how they affect lives. Our incisive and analytical view of how technology news affects the daily life help individuals and organizations make up their minds. Quality journalism costs money. Today, we're asking that you support us to do more. Kindly support our effort to deliver technology and finance journalism to everyone in the world. Donate as little as N1,000. Bank transfers can be made to: UBA Plc 1017156876 Communication Week Media Ltd

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Kaspersky Reveals Credential Abuse Techniques Rank as Attackers’ Most Effective Tactic

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According to a recent global report by Kaspersky Security Services, password guessing and valid account misuse rank among the most effective tactics used by cyber criminals in 2025.

This trend reflects a strategic shift, as attackers move away from triggering endpoint protection with noisy malware, in preference of leveraging legitimate access to evade detection.

The ‘Anatomy of a Cyber World’ is an in-depth global report based on data gathered from Kaspersky Managed Detection and Response (MDR), Incident Response (IR), Compromise Assessment and SOC Consulting in 2025. It covers the most common adversary techniques, tools and detection scenarios and highlights the peculiarities of detected incidents.

According to the report, a significant portion of the most frequently monitored attack techniques revolves around credentials and identity management. This analysis, which examines the conversion rates* of various Indicators of Attack (IoA), highlights the following prevalent malicious tactics:

Password guessing – 34.8%. This technique entails attackers systematically trying different passwords until successfully gaining access to an account. It tops the conversion list due to its occurrence in both actual attacks and authorised security assessments, making it a persistent threat in today’s cybersecurity landscape. Organisations who rely on weak or reused passwords continues to enable this age-old strategy.

Local account creation – 34.7%. Once inside a system, attackers frequently create new local accounts to maintain access even if their original foothold is discovered and removed. This technique is frequently observed during security exercises and can be detected — but only with the right telemetry in place, which is often lacking.

Valid account abuse – 34.5%. Instead of deploying malware, attackers log in using stolen or compromised credentials and simply blend in with normal user activity. This makes detection significantly harder, as the access itself appears legitimate. The high conversion rate underscores why compromised credentials remain one of the most dangerous attack vectors.

Account manipulation – 32%. Attackers modify existing accounts to consolidate access such as by activating disabled accounts, altering group memberships, or escalating privileges. This reinforces the broader pattern — rather than introducing new tools, adversaries deepen their control using what is already there.

Network service discovery – 31.2%. Before moving deeper into a network, attackers typically scan for open services and systems they can reach. This reconnaissance step is a strong predictor of what follows: lateral movement and further exploitation. Detecting it early provides security teams a critical window to intervene.

The report ranks attacker techniques by how frequently observed activity ultimately resulted in confirmed malicious incidents. According to Kaspersky experts, while MITRE ATT&CK® catalogs a vast number of adversary techniques, effective detection requires prioritising behaviours with the highest probability of malicious intent while avoiding excessive false positives.

“Threat actors do not always need sophisticated malware to achieve their objectives. In many cases, legitimate administrative tools and compromised accounts remain the fastest and most effective way to move inside an organisation while avoiding detection.

The continued popularity of these techniques shows that organisations need deep visibility into attacker behaviour and the ability to correlate suspicious activity across different stages of an attack.

To address these challenges, companies can enhance their security with our solutions: Kaspersky Managed Detection and Response and Incident Response which cover the entire incident management cycle – from threat detection to continuous protection and remediation,” comments Sergey Soldatov, Head of Security Operations Center at Kaspersky.


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INEC Probes Claims of Leaked Voter Data from CVR System

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Independent National Electoral Commission (INEC) has started looking into reports of unauthorized access to its Continuous Voter Registration (CVR) database, according to Mohammed Kudu Haruna, national commissioner and chairman of the Information and Voter Education Committee (IVEC),

INEC Probes Claims of Leaked Voter Data from CVR System

Haruna, in a statement on Tuesday said that was aware of the allegations spreading on social media and in some news outlets.

“The Independent National Electoral Commission is aware of rumors currently circulating on social media and in certain media about unauthorized access to the Commission’s Continuous Voter Registration  (CVR) database.

These claims include the publication of information about a candidate from recent political party primaries in the Federal Capital Territory.

“The Commission takes this allegation very seriously and has quickly begun a thorough investigation to find out what really happened,” the statement noted.

INEC clarified that during the ongoing nationwide CVR process, registered officers were given limited access to specific parts of the registration system.

This access helps them manage voter registrations, transfer requests, and updates to voter records.

The commission stated that access to the information is only allowed for official duties and is taken away once the task ends.

Haruna revealed that initial findings from the commission’s audit trail helped pinpoint the user account used to access the information.

“The audit trail from our early investigation has allowed us to find out which user account was involved. As a result, we’ve questioned relevant staff, and all departments related to this matter are fully cooperating with the investigation,” it mentioned.

The commission also said it is looking into all technical, administrative, and operational details of the situation to figure out who is responsible and whether any internal access-control rules were broken.

However, INEC reported that its early findings indicated there was no outside breach of its systems.

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“Our initial findings from the audit trail suggest that there was no external breach of the CVR database, no hacking incident, and no unauthorized outside access to our ICT systems.”

“Instead, the information in question was accessed using valid user credentials assigned to personnel involved in the ongoing CVR exercise but was released without proper authorization,” added the statement.

The commission emphasized that this incident involved retrieving a specific voter record and did not indicate any risk to the overall voter registration system or the personal data of over 90 million registered voters.

“The investigation is focused on the retrieval of a specific voter record and does not suggest any risk to the overall voter registration system or the personal data of over 90 million registered voters, according to the statement.

INEC emphasized that it is dedicated to safeguarding voter information and ensuring the integrity of its electoral systems.

“The Commission clearly states that it takes the security, privacy, and integrity of voter data very seriously. It remains committed to transparency, institutional integrity, and protecting voters’ personal details,” the statement noted.

The commission also announced that the Department of State Services has started its own investigation into this issue.

“Additionally, the Department of State Services has independently begun an investigation. The Commission will fully cooperate with all relevant security agencies and will not hesitate to take legal action against anyone found responsible,” the statement continued.

INEC encouraged the public and media to refrain from making assumptions while investigations are ongoing, promising that it will share its findings and any actions taken in due time.


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Firm Warns of Attackers Using Text Symbols to Form Malicious QR Codes

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QR codes embedded in emails have long been a tool for phishing and scams, and back in the second half of 2025 there was a fivefold surge in QR phishing attacks detected by Kaspersky.

Now Kaspersky researchers have identified a new phishing tactic in which attackers construct QR codes using text characters rather than traditional images. This method allows such malicious QR codes to bypass many email security solutions that rely on image scanning or link detection.

Early computers were incapable of rendering true graphics, and images on them were composed entirely of text characters. Historically this was done with symbols from the ASCII (American Standard Code for Information Interchange) character set, introduced in 1963. Images created using this technique were called ASCII graphics. Later other character sets (like Unicode) were also utilised to create images, but the term ASCII graphics remained.

In the 2000s, spam senders already used images built from text symbols. By using text-based graphics instead of embedded images, attackers tried to avoid detection mechanisms that analyse pictures for hidden URLs.

With ASCII graphics used to create QR codes, the phishing scheme follows a familiar pattern as with QR codes in images which Kaspersky described earlier. Victims receive an email allegedly coming from a business partner, claiming to include a confidential document for signature via DocuSign.

The message instructs the recipient to scan a QR code to access the document, leading to a fake website where corporate credentials are requested. With the QR code laid out in text characters, many protective solutions would fail to identify any suspicious links.

“We have previously seen phishers try to avoid link scanning by hiding URLs in images. Now they are attempting to evade image-based scanning by returning to text – this time to render a QR code. Any instance where a QR code prompts someone to enter corporate credentials on a mobile device should raise immediate suspicion.

When the QR code is formed using textual ASCII art, it is almost certainly a phishing attempt or a lure to a malicious URL. This trick has only one purpose: bypassing security technologies,” commented Roman Dedenok, Anti-Spam Expert at Kaspersky.

To defend against this threat, Kaspersky recommends deploying a proven mail server security solution such as Kaspersky Security for Mail Server that provides secure corporate email exchange, countering spam, email-borne infections, all forms of phishing, business email compromise (BEC), QR code attacks, and other threats.


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