RDTSC

Created the Monday 18 March 2019. Updated 1 year, 2 months ago.

The Read-Time-Stamp-Counter (RDTSC) instruction can be used by malware to determine how quicky the processor executes the program's instructions. It returns the count of the number of ticks since the last system reboot as a 64-bit value placed into EDX:EAX.

It will execute RDTSC twice and then calculate the difference between low order values and check it with CMP condition. If the difference lays below 0FFFh no debugger is found if it is above or equal, then application is debugged.


Technique Identifier

U0126

Technique Tag

RDTSC


Code Snippets

Detection Rules

Additional Resources

External Links

The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.

Matching Samples 10 most recent

Sample Name Matching Techniques First Seen Last Seen
build.exe 5 2024-12-01 4 days, 15 hours ago
satan_ransomware.exe 10 2024-11-30 6 days, 10 hours ago
Xulytaikhoan.xlsx 14 2024-11-26 1 week, 3 days ago
MokManager.efi 8 2024-11-25 1 week, 4 days ago
f9a5a72ead096594c5d59abe706e...0c3b4ebd7690f2eb114a37d1a7db 6 2024-11-19 2 weeks, 3 days ago
f2665f89ba53abd3deb81988c0d5...4053e77fc89b98b64a31a7504d77 6 2024-11-19 2 weeks, 3 days ago
ffc49c8fd266e46d2cf1f02f62b1...c88e6b01f9e022325744f55e2f07 5 2024-11-19 2 weeks, 3 days ago
ffbe22e427a9aca61a1565c32137...5a56de738cbb240f7b5bb1d1dca1 6 2024-11-19 2 weeks, 3 days ago
e18ac2c4a57b7b4980c63623c966...4e2bb66f2cc4a54974219818fff3 8 2024-11-19 2 weeks, 3 days ago
d87df763fcbee9141be2d06a2e6c...489083d7d933dec781652dd31d32 5 2024-11-19 2 weeks, 3 days ago
View All

Sleeping Alien

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