Secplicity Blog - Research

Deobfuscating a Dropper for a ZLoader Trojan Variant

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On March 18th, 2021, the DNSWatch Tailored Analysis Team received an email from an internal WatchGuard employee who deemed the email as suspicious. The initial email included an attachment with the title Attachment_57904. A DNSWatch Analyst performed an initial assessment of the file in search of…

Analysis of a Dridex Banking Trojan Phish

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At the beginning of March, as many Americans were eagerly awaiting another round of stimulus payments, news began to circulate about cybercriminals taking advantage of the American Rescue Plan offering financial assistance (payments and other aids) as part of COVID-19 relief. We got a hold of some…

Analyzing a Fileless Malware Loader

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Thanks to WatchGuard’s Panda Adaptive Defense 360 zero-trust service, WatchGuard Threat Lab was able to identify and stop a sophisticated fileless malware loader before execution on the victim’s computer. Upon further detailed analysis by our attestation team, we identified several recent browser…

Identifying an Existing APT Intrusion

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Last month while onboarding a new customer to Panda EDR with the Orion threat hunting console, WatchGuard Threat Lab discovered an existing advanced persistent threat (APT) on the organization’s network. WatchGuard Threat Lab investigated the incident and were able to identify much of the threat…

Catching a Rookie Mistake in a Facebook Phish

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This short post will show a real-world phish that DNSWatch caught and how analysts were able to garner further information using trivial open-source tools because of a unique mistake by the attacker.

New Research Reveals Sexist Tendencies in Facial Recognition Tech

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Recently Amazon, Microsoft, and others have taken a step back to review the use of their own face recognition software. Some users of this technology may use only face recognition to identify a person. This idea that you only need the face recognition software to identify a person doesn’t allow for…

MedusaLocker Ransomware Will Bypass Most Antivirus Software

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Last week we came across ransomware with unique evasion techniques in a new variant, or possibly a copycat, of the MedusaLocker ransomware. MedusaLocker ransomware, first seen in September 2019, came with a batch file to evade detection. Batch files contain script commands running in a Command…

Chase Bank Scams Target Our Own

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The other day, a WatchGuard employee received a text alert stating that Chase bank had limited access to their account. They right away knew the message was bogus and offered it to us to investigate. We found the link within the message sends the user to a fake Chase login. Fortunately, the employee…

PayPal Phishing

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The other day, a PayPal phish made it into the inbox of my personal email. It is not normal for phishing emails to make their way past my cloud email provider’s spam filter, so I decided to spin up a sandbox just in case any malware was involved and dive in. The phishing hook in the message body…