(YARA) Detect Interrupts 2
rule Detect_Interrupt: AntiDebug {
meta:
description = "Detect Interrupt instruction"
author = "Unprotect"
comment = "Experimental rule / the rule can be slow to use"
strings:
$int3 = { CC }
$intCD = { CD }
$int03 = { 03 }
$int2D = { 2D }
$ICE = { F1 }
condition:
uint16(0) == 0x5A4D and filesize < 1000KB and any of them
}
Associated Techniques
| Technique Name | Technique ID's | Categories | Snippet(s) |
|---|---|---|---|
| INT3 Instruction Scanning | U0105 B0001.025 |
|
|
| INT 0x2D | U0129 B0001.006 |
|
|
| ICE 0xF1 | U0130 |
|
Matching Samples 10 most recent
| Sample Name | Matching Techniques | First Seen | Last Seen |
|---|---|---|---|
| 2_5339247083163523934.exe | 6 | 2026-03-27 | 6 hours ago |
| rootkit.exe | 10 | 2026-03-24 | 3 days, 3 hours ago |
| spread.exe | 6 | 2026-03-24 | 3 days, 3 hours ago |
| ngen.exe | 7 | 2026-03-20 | 1 week ago |
| write.exe | 5 | 2026-03-20 | 1 week ago |
| UnPackMe_VMProtect_1.53.exe | 7 | 2026-03-19 | 1 week, 1 day ago |
| loader.exe | 5 | 2026-03-14 | 1 week, 5 days ago |
| BBHloader.exe | 6 | 2026-03-10 | 2 weeks, 3 days ago |
| library2.dll | 6 | 2026-03-06 | 3 weeks ago |
| library.dll | 8 | 2026-03-06 | 3 weeks ago |
Created
June 22, 2022
Last Revised
March 27, 2026