399. Threat Actors Abuse Storj to Deliver OXLOADER

Hello everyone!

Attackers are increasingly using legitimate web services to host malicious files, and today we'll take a look at another example: Storj.

According to this report, the attackers used malvertising to distribute the OXLOADER loader. To host the malicious payloads, they relied on the Storj service, for example:

link[.]storjshare[.]io/raw/jwwvr4oskkkjsgevt774ta62ehya/ruslan/aBsvwbdas.exe

As with other services of this kind, you can look for suspicious interactions with them using a query like:

event_type: "dnsreq"

AND

dns_rname: "storjshare.io"

Or you can simply block access to the service altogether - in that case, users won't be able to download the malicious files.

See you soon!

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