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Attackers Compromise ASUS Software Update Servers to Distribute Malware
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markgrogan
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markgrogan,
User Rank: Apprentice
4/18/2019 | 2:19:52 AM
Millions within seconds
This is one of the many reasons why I am skeptical each time I see my computer prompting me to install updates. I am not 100% certain if they are to upgrade my security or increase its risks entirely. Attacking through updates is definitely a highly devious method which can easily hit millions within a short timeframe.
PaulMakowski
50%
50%
PaulMakowski,
User Rank: Author
3/26/2019 | 6:43:35 PM
Certificates Not Revoked
Perhaps the most appalling aspect of this story is ASUS has still not revoked the certificates that attackers used to sign their malware.

Two possibilities:
  1. Attackers compromised these certificates; they have their private keys.
  2. Attackers did not compromise the private keys, instead only gainning sufficient access to cause ASUS signing infrastructure to sign whatever binary blob they requested.

In both cases, certificate revocation is absolutely essential and should have been done immediately. Even if the attackers didn't compromise the private keys, revoking the certs would prevent users from installing the signed malware, including malware signed by those keys that may have escaped detection thus far.
mashd
50%
50%
mashd,
User Rank: Author
3/26/2019 | 10:06:02 AM
The future is now
Fascinating attack from the targeted nature of the effort. This underscores that adversaries are going to try to subvert our processes and to persist in areas where we have limited visibility. Think of the opportunities there may be in GPUs or any other specialized hardware. This underscores the need for visibility on both the endpoint and on the network.


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