Security experts from Microsoft have uncovered an ongoing p
According to Microsoft, this is the first time that the TA505 group is using this tactic.
TA505 hacking group has been active since 2014 focusing on Retail and banking sectors. The group is also known for some evasive techniques they put in place over time to avoid the security controls and penetrate corporate perimeters with several kinds of malware, for instance abusing the so-called LOLBins (Living Off The Land Binaries), legit programs regularly used by victim, or also the abuse of valid cryptographically signed payloads.
The TA505 group was involved in campaigns aimed at distributing the Dridex banking Trojan, along with Locky, BitPaymer, Philadelphia, GlobeImposter, and Jaff ransomware families.
Security experts from cyber-security firm Prevailion reported that TA505 has compromised more than 1,000 organizations.
“During our analysis of this
Now Microsoft confirmed to have observed an ongoing “Dudear (aka TA505, Evil Corp)” phishing campaign that was distributing an information-stealer tracked as GraceWire (aka FlawedGrace)
“This is the first time that Dudear is observed using HTML
Experts from Microsoft revealed that attackers are using HTML
The victims are then tricked into opening the Excel document as online previewing is not available and to enable editing of the file to access its content.
“Once you have enabled editing, please click Enable Content from the yellow bar above,” the bait Microsoft Office doc adds.
Experts pointed out that operators behind this phishing campaign also use localized HTML files in different languages to target users worldwide.
The attackers are able to track the IP addresses of machines that download the malicious Excel file by using an IP
Microsoft Security Intelligence p
The good news is that Microsoft Security Intelligence has confirmed that Microsoft Threat Protection is able to neutralize the attack. Office 365 is able to detect malicious attachments and URLs employed in this campaign and Microsoft Defender ATP is also able to detect malicious HTML, Excel file and p
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