Tag: email security

8 Attack Reports | 0 Vulnerabilities

Attack reports

Microsoft 365 Direct Send Abuse: Phishing Risks & Security Recommendations

Threat actors are actively exploiting Microsoft 365's Direct Send feature to deliver phishing emails, bypassing perimeter security solutions by routing malicious messages through trusted infrastructure. This technique requires no credentials, only knowledge of the target domain and valid recipient …
phishing
credential theft
spoofing
microsoft 365
business email compromise
email security
2025-08-18
direct send
Published: August 18, 2025
Downloadable IOCs: 27

The Homograph Illusion: Not Everything Is As It Seems

Homograph attacks involve using non-Latin characters that visually resemble Latin characters to create words that appear legitimate but are actually different. This technique allows attackers to evade detection and analysis, crafting malicious emails that can lead to credential theft or malware inf…
phishing
social engineering
brand impersonation
email security
2025-08-08
character substitution
homograph attack
unicode
Published: August 8, 2025
Downloadable IOCs: 8

TxTag Takedown: Busting Phishing Email Schemes

A new phishing campaign has been observed leveraging a .gov domain to deceive employees into believing they owe unpaid tolls. The scheme uses urgency and fear tactics, threatening penalties or vehicle registration holds if the balance is not paid immediately. The attackers utilize the GovDelivery s…
phishing
social engineering
credit card fraud
email security
txtag
2025-06-20
toll scam
.gov domain
govdelivery
Published: June 20, 2025
Downloadable IOCs: 1

Pixel-Perfect Trap: The Surge of SVG-Borne Phishing Attacks

The Trustwave SpiderLabs Email Security team has identified a significant increase in SVG image-based attacks, where seemingly harmless graphics are used to conceal dangerous links. Cybercriminals are exploiting the ability of SVG files to embed JavaScript, which can execute automatically upon open…
obfuscation
phishing
social engineering
phaas
javascript
cybersecurity
email security
svg
2025-05-16
ursnif
tycoon2fa
Published: May 16, 2025
Downloadable IOCs: 4

The Return of Pharmacy-Themed Spam

Pharmaceutical-themed spam campaigns continue to target individuals and organizations, particularly in the healthcare and pharmaceutical sectors. Recent observations reveal a bulk spam campaign using spoofed identities and compromised infrastructure to send deceptive emails. The attackers employ ta…
phishing
spam
social-engineering
domain-spoofing
2025-04-26
pharmacy
compromised-servers
email-security
fraudulent-websites
dkim
Published: April 26, 2025
Downloadable IOCs: 0

Money Laundering 101, and why there is concern

This newsletter discusses the process of money laundering in the context of cybercrime, particularly ransomware attacks. It explains the three basic steps of money laundering: placement, layering, and integration. The author expresses concern about regulatory changes that might facilitate easier mo…
malware
ransomware
cryptocurrency
spam
cybercrime
email security
w32.file.malparent
coinminer:mbt.26mw.in14.talos
2025-03-28
trojan.generickd.33515991
money laundering
simple_custom_detection
regulatory changes
Published: March 28, 2025
Downloadable IOCs: 0

Threat Actors Exploit Government Website Vulnerabilities for Phishing Campaigns

Threat actors are exploiting vulnerabilities in government websites, particularly .gov domains, to conduct phishing campaigns. The abuse primarily involves using open redirects to bypass secure email gateways and lead victims to credential phishing pages. A significant portion of these exploits may…
phishing
credential theft
email security
2025-01-29
stormkitty
agent tesla keylogger
CVE-2024-25608
open redirects
.gov domains
liferay
government websites
Published: January 29, 2025
Linked vulnerabilities : CVE-2024-25608
Downloadable IOCs: 4

Inside the incident: Uncovering an advanced phishing attack

A sophisticated phishing campaign targeted a U.K.-based insurance company, using a compromised CEO's email account from a major shipping company. The attack involved a malicious PDF link hosted on AWS, leading to a fake Microsoft authentication page. The threat actor employed tactics like deletion …
phishing
social engineering
credential theft
2024-12-11
account takeover
email security
Published: December 11, 2024
Downloadable IOCs: 4
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