New Konfety Malware Variant Evades Detection by Manipulating APKs and Dynamic Code

Cybersecurity researchers have discovered a new, sophisticated variant of a known Android malware referred to as Konfety that leverages the evil twin technique to enable ad fraud. The sneaky approach essentially involves a scenario wherein two variants of an application share the same package nam...

CVE-2022-27969

Cynet 360 Web Portal before v4.5 was discovered to allow attackers to access a list of decoy users via a crafted GET request sent to /WebApp/DeceptionUser/GetAllDeceptionUsers...

University site cloned to evade ad detection distributes fake Cisco installer

There is a constant "cat and mouse" game between defenders and attackers, the latter trying to outsmart and get a head start on the former. In the context of online advertising, this involves creating fake identities or using stolen ones to push out malicious ads. An attacker not only needs to...

Horns&Hooves campaign delivers NetSupport RAT and BurnsRAT

Recent months have seen a surge in mailings with lookalike email attachments in the form of a ZIP archive containing JScript scripts. The script files – disguised as requests and bids from potential customers or partners – bear names such as "Запрос цены и предложения от Индивидуального...

Threat actors use copyright infringement phishing lure to deploy infostealers

Cisco Talos has observed an unknown threat actor conducting a phishing campaign targeting Facebook business and advertising account users in Taiwan. The decoy email and fake PDF filenames are designed to impersonate a company's legal department, attempting to lure the victim into downloading and...

Large scale Google Ads campaign targets utility software

After what seemed like a long hiatus, we've observed threat actors returning to malvertising to drop malware disguised as software downloads. The campaign we identified is high-impact, going after utility software such as Slack, Notion, Calendly, Odoo, Basecamp, and others. For this blog, we...

Chinese Hackers Exploit GeoServer Flaw to Target APAC Nations with EAGLEDOOR Malware

A suspected advanced persistent threat APT originating from China targeted a government organization in Taiwan, and possibly other countries in the Asia-Pacific APAC region, by exploiting a recently patched critical security flaw impacting OSGeo GeoServer GeoTools. The intrusion activity, which w...

Fake Canva home page leads to browser lock

In a previous blog post, we showed how fraudsters were leveraging features from the very company Microsoft they were impersonating. We continue this series with another clever trick abusing Canva, a popular online tool for graphic design. This time, the scammers registered an account on Canva to...

Fraudulent Slack ad shows malvertiser’s patience and skills

In the past year alone, we have reported almost five hundred unique malvertising incidents related to Google search ads. While it can be difficult to attribute each incident to a specific threat actor, we usually notice similarities between campaigns. Some malvertisers go to great lengths to bypa...

New UULoader Malware Distributes Gh0st RAT and Mimikatz in East Asia

A new type of malware called UULoader is being used by threat actors to deliver next-stage payloads like Gh0st RAT and Mimikatz. The Cyberint Research Team, which discovered the malware, said it's distributed in the form of malicious installers for legitimate applications targeting Korean and...

Cybercriminals Abusing Cloudflare Tunnels to Evade Detection and Spread Malware

Cybersecurity companies are warning about an uptick in the abuse of Clouflare's TryCloudflare free service for malware delivery. The activity, documented by both eSentire and Proofpoint, entails the use of TryCloudflare to create a rate-limited tunnel that acts as a conduit to relay traffic from ...

'Konfety' Ad Fraud Uses 250+ Google Play Decoy Apps to Hide Malicious Twins

Details have emerged about a "massive ad fraud operation" that leverages hundreds of apps on the Google Play Store to perform a host of nefarious activities. The campaign has been codenamed Konfety – the Russian word for Candy – owing to its abuse of a mobile advertising software development kit...

Chinese Hackers Deploy SpiceRAT and SugarGh0st in Global Espionage Campaign

A previously undocumented Chinese-speaking threat actor codenamed SneakyChef has been linked to an espionage campaign primarily targeting government entities across Asia and EMEA Europe, Middle East, and Africa with SugarGh0st malware since at least August 2023. "SneakyChef uses lures that are...

Unveiling SpiceRAT: SneakyChef's latest tool targeting EMEA and Asia

Cisco Talos discovered a new remote access trojan RAT dubbed SpiceRAT, used by the threat actor SneakyChef in a recent campaign targeting government agencies in EMEA and Asia. We observed that SneakyChef launched a phishing campaign, sending emails delivering SugarGh0st and SpiceRAT with the same...

SneakyChef espionage group targets government agencies with SugarGh0st and more infection techniques

Cisco Talos recently discovered an ongoing campaign from SneakyChef, a newly discovered threat actor using SugarGh0st malware, as early as August 2023. In the newly discovered campaign, we observed a wider scope of targets spread across countries in EMEA and Asia, compared with previous...

Russian Power Companies, IT Firms, and Govt Agencies Hit by Decoy Dog Trojan

Russian organizations are at the receiving end of cyber attacks that have been found to deliver a Windows version of a malware called Decoy Dog. Cybersecurity company Positive Technologies is tracking the activity cluster under the name Operation Lahat, attributing it to an advanced persistent...

Malware Delivery via Cloud Services Exploits Unicode Trick to Deceive Users

A new attack campaign dubbed CLOUDREVERSER has been observed leveraging legitimate cloud storage services like Google Drive and Dropbox to stage malicious payloads. "The VBScript and PowerShell scripts in the CLOUDREVERSER inherently involves command-and-control-like activities by using Google...

North Korean Hackers Exploit Facebook Messenger in Targeted Malware Campaign

The North Korea-linked Kimsuky hacking group has been attributed to a new social engineering attack that employs fictitious Facebook accounts to targets via Messenger and ultimately delivers malware. "The threat actor created a Facebook account with a fake identity disguised as a public official...

Hackers Hit Indian Defense, Energy Sectors with Malware Posing as Air Force Invite

Indian government entities and energy companies have been targeted by unknown threat actors with an aim to deliver a modified version of an open-source information stealer malware called HackBrowserData and exfiltrate sensitive information in some cases by using Slack as command-and-control C2...

Nitrogen shelling malware from hacked sites

Nitrogen is the name given to a campaign and associated malware that have been distributed via malicious search ads. Its signature move is using Python and DLL side-loading to connect to the attackers command and control server. In this blog post, we look at a recent Nitrogen campaign and...