YARA · LOLDrivers
LOLDRIVERS_MAL_Driver_Paloaltonetworksinc_Tdevfltsys_Cortexxdradvancedendpointprotection_8284
Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - tdevflt.sys, ABYSSWORKER. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious.
- Author
- Florian Roth
- Date
- 2026-07-10
- Modified
- 2026-09-08
- Score / Quality
- 70 / 80
What this rule detects
Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - tdevflt.sys, ABYSSWORKER. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious.
It defines 8 patterns (0 text, 8 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
rule LOLDRIVERS_MAL_Driver_Paloaltonetworksinc_Tdevfltsys_Cortexxdradvancedendpointprotection_8284
{
meta:
= "Detects malicious driver mentioned in LOLDrivers project using VersionInfo values from the PE header - tdevflt.sys, ABYSSWORKER. Investigate matches in context: expected filenames or standard vendor/system driver locations can be lower priority, while unexpected filenames or paths are more suspicious."
= "Florian Roth"
= "32233331-2e87-52f3-874a-93fe8747efaa"
= "2026-07-10"
= "2026-09-08"
= "https://github.com/magicsword-io/LOLDrivers"
= "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/detections/yara/yara-rules_mal_drivers.yar#L1145-L1164"
= "https://github.com/magicsword-io/LOLDrivers//blob/9fa32adeab865455de8b24cba0bbc0f3439d59f7/LICENSE"
= "8284c8676cc22c4b2e66826ac16986da7ddecba1f2776b16771be17bfdc45dc2"
= "46da747e7362e38544ec0e107a02614155b3c235d02add7846a3ffc7537418b5"
= 70
= 80
= ""
strings:
$ = { 460069006c0065004400650073006300720069007000740069006f006e00[1-8]43006f0072007400650078002000580044005200200050006e00500020004400650076006900630065002000460069006c007400650072002000440072006900760065007200 }
$ = { 43006f006d00700061006e0079004e0061006d006500[1-8]500061006c006f00200041006c0074006f0020004e006500740077006f0072006b0073002c00200049006e0063002e00 }
$ = { 460069006c006500560065007200730069006f006e00[1-8]38002e0032002e0032002e0034003900370030003800 }
$ = { 500072006f006400750063007400560065007200730069006f006e00[1-8]38002e0032002e0032002e0034003900370030003800 }
$ = { 49006e007400650072006e0061006c004e0061006d006500[1-8]740064006500760066006c0074002e00730079007300 }
$ = { 500072006f0064007500630074004e0061006d006500[1-8]43006f00720074006500780020005800440052002221200041006400760061006e00630065006400200045006e00640070006f0069006e0074002000500072006f00740065006300740069006f006e00 }
$ = { 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]740064006500760066006c0074002e00730079007300 }
$ = { 4c006500670061006c0043006f007000790072006900670068007400[1-8]a9002000500061006c006f00200041006c0074006f0020004e006500740077006f0072006b0073002c00200049006e0063002e00200041006c006c002000720069006700680074007300200072006500730065007200760065006400 }
condition:
all of them
}
Strings (8 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $ | hex | { 460069006c0065004400650073006300720069007000740069006f006e00[1-8]43006f0072007400650078002000580044005200200050006e0050002000440065007600690063006500200046006 … | |
| $ | hex | { 43006f006d00700061006e0079004e0061006d006500[1-8]500061006c006f00200041006c0074006f0020004e006500740077006f0072006b0073002c00200049006e0063002e00 } | |
| $ | hex | { 460069006c006500560065007200730069006f006e00[1-8]38002e0032002e0032002e0034003900370030003800 } | |
| $ | hex | { 500072006f006400750063007400560065007200730069006f006e00[1-8]38002e0032002e0032002e0034003900370030003800 } | |
| $ | hex | { 49006e007400650072006e0061006c004e0061006d006500[1-8]740064006500760066006c0074002e00730079007300 } | |
| $ | hex | { 500072006f0064007500630074004e0061006d006500[1-8]43006f00720074006500780020005800440052002221200041006400760061006e00630065006400200045006e00640070006f0069006 … | |
| $ | hex | { 4f0072006900670069006e0061006c00460069006c0065006e0061006d006500[1-8]740064006500760066006c0074002e00730079007300 } | |
| $ | hex | { 4c006500670061006c0043006f007000790072006900670068007400[1-8]a9002000500061006c006f00200041006c0074006f0020004e006500740077006f0072006b0073002c00200049006e006 … |
Condition
all of themIn plain words (Heuristic)
- All patterns in the rule must match.
Test this rule in your browser
Drop a file to scan it with this rule using YARA-X compiled to WebAssembly. Nothing is uploaded.
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- 8284c8676cc22c4b2e66826ac16986da7ddecba1f2776b16771be17bfdc45dc2
Licence & attribution
Author: Florian Roth
Source repository: LOLDrivers @ 9fa32adeab
Licence: Apache License 2.0 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 32233331-2e87-52f3-874a-93fe8747efaa
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