YARA · ditekSHen detection
DITEKSHEN_MALWARE_Win_Sectoprat
Detects SectopRAT
- Author
- ditekSHen
- Date
- 2020-11-06
- Modified
- 2024-11-01
- Score / Quality
- 75 / 75
What this rule detects
Detects SectopRAT
Associated malware family: Sectoprat.
Targets: Windows PE.
It defines 18 patterns (18 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
malware-win-sectoprat.yarBSD 2-Clause License
rule DITEKSHEN_MALWARE_Win_Sectoprat : FILE
{
meta:
= "Detects SectopRAT"
= "ditekSHen"
= "d6594834-24d7-5e86-84b5-5a7920e7bc89"
= "2020-11-06"
= "2024-11-01"
= "https://github.com/ditekshen/detection"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/yara/malware.yar#L7904-L7929"
= "https://github.com/ditekshen/detection/blob/e76c93dcdedff04076380ffc60ea54e45b313635/LICENSE.txt"
= "b4048f837c02560a8b650247173be25893b466e5cec8f2784eea58172f973822"
= 75
= 75
= "FILE"
strings:
$s1 = "\\\\.\\root\\cimv2:Win32_Process" wide
$s2 = "\\\\.\\root\\cimv2:CIM_DataFile.Name=" wide
$s3 = "^.*(?=Windows)" fullword wide
$s4 = "C:\\Windows\\System32\\cmd.exe" wide
$s5 = "C:\\Windows\\explorer.exe" wide
$s6 = "Disabling IE protection" wide
$s7 = "stream started succces" wide
$b1 = "/C start Firefox" wide
$b2 = "/C start chrome" wide
$b3 = "/C start iexplore" wide
$m1 = "DefWindowProc" fullword ascii
$m2 = "AuthStream" fullword ascii
$m3 = "KillBrowsers" fullword ascii
$m4 = "GetAllNetworkInterfaces" fullword ascii
$m5 = "EnumDisplayDevices" fullword ascii
$m6 = "RemoteClient.Packets" fullword ascii
$m7 = "IServerPacket" fullword ascii
$m8 = "keybd_event" fullword ascii
condition:
uint16( 0 ) == 0x5a4d and ( ( 5 of ( $s* ) and 2 of ( $b* ) ) or all of ( $s* ) or ( all of ( $b* ) and ( 4 of ( $s* ) or 5 of ( $m* ) ) ) )
}
Strings (18 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "\\\\.\\root\\cimv2:Win32_Process" | wide |
| $s2 | text | "\\\\.\\root\\cimv2:CIM_DataFile.Name=" | wide |
| $s3 | text | "^.*(?=Windows)" | fullword wide |
| $s4 | text | "C:\\Windows\\System32\\cmd.exe" | wide |
| $s5 | text | "C:\\Windows\\explorer.exe" | wide |
| $s6 | text | "Disabling IE protection" | wide |
| $s7 | text | "stream started succces" | wide |
| $b1 | text | "/C start Firefox" | wide |
| $b2 | text | "/C start chrome" | wide |
| $b3 | text | "/C start iexplore" | wide |
| $m1 | text | "DefWindowProc" | fullword ascii |
| $m2 | text | "AuthStream" | fullword ascii |
| $m3 | text | "KillBrowsers" | fullword ascii |
| $m4 | text | "GetAllNetworkInterfaces" | fullword ascii |
| $m5 | text | "EnumDisplayDevices" | fullword ascii |
| $m6 | text | "RemoteClient.Packets" | fullword ascii |
| $m7 | text | "IServerPacket" | fullword ascii |
| $m8 | text | "keybd_event" | fullword ascii |
Condition
uint16( 0 ) == 0x5a4d and ( ( 5 of ( $s* ) and 2 of ( $b* ) ) or all of ( $s* ) or ( all of ( $b* ) and ( 4 of ( $s* ) or 5 of ( $m* ) ) ) )In plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- All patterns in ( $s* ) must match.
- All patterns in ( $b* ) must match.
- At least 5 patterns in ( $s* ) must match.
- At least 2 patterns in ( $b* ) must match.
- At least 4 patterns in ( $s* ) must match.
- At least 5 patterns in ( $m* ) must match.
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References
Licence & attribution
Author: ditekSHen
Source repository: ditekSHen detection @ e76c93dcde
Licence: BSD 2-Clause License (repository licence)
Copyright notice: Copyright 2021 by ditekSHen (https://github.com/ditekshen/detection).
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: d6594834-24d7-5e86-84b5-5a7920e7bc89
Tags:FILE
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