YARA · SEKOIA.IO Community
SEKOIA_Ransomware_Win_Dodo_2023
Rule to detect Dodo ransomware samples.
- Author
- Sekoia.io
- Date
- 2023-02-13
- Modified
- 2024-12-19
- Score / Quality
- 75 / 80
What this rule detects
Rule to detect Dodo ransomware samples.
Targets: Windows PE.
It defines 7 patterns (7 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
ransomware-win-dodo-2023.yarDetection Rule License 1.1
rule SEKOIA_Ransomware_Win_Dodo_2023 : FILE
{
meta:
= "Rule to detect Dodo ransomware samples."
= "Sekoia.io"
= "190977d4-5a7a-4e15-8f90-085f82ec56c8"
= "2023-02-13"
= "2024-12-19"
= "https://github.com/SEKOIA-IO/Community"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/yara_rules/ransomware_win_dodo_2023.yar#L1-L22"
= "https://github.com/SEKOIA-IO/Community/blob/a438a5901a211c2abdf75da9c93921ef187473d1/LICENSE.md"
= "aee45cc2540d49a28e765c30f1c4d0b853c1a74ea2260bd7614ece8e54c3bcb3"
= "01924360ef4bbecd220439290eba22838a3977793fdebd0ef0be74c342c0d152"
= 75
= 80
= "FILE"
= "1.0"
= "TLP:CLEAR"
strings:
$s1 = "DODOCRYPTER" ascii wide
$s2 = "dodov2" ascii wide
$s3 = "dodov2SPREAD.exe" ascii wide
$s4 = "dodov2_readit.txt" ascii wide
$s5 = "WELCOME, DODO has returned" ascii wide
$s6 = "Monero Address: 442n8nf9zojie1JdkZqxDQJFDumBEgZmVZozLdYd5jVPSMws2oUPvNLJKca6JKojyA7zDCZCnMyYnKbY1JLNsbzWK6HNNqW" ascii wide
$s7 = "The price for the software is $15. Payment can be made in Bitcoin or XMR." ascii wide
condition:
uint16be( 0 ) == 0x4d5a and 4 of them
}
Strings (7 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s1 | text | "DODOCRYPTER" | ascii wide |
| $s2 | text | "dodov2" | ascii wide |
| $s3 | text | "dodov2SPREAD.exe" | ascii wide |
| $s4 | text | "dodov2_readit.txt" | ascii wide |
| $s5 | text | "WELCOME, DODO has returned" | ascii wide |
| $s6 | text | "Monero Address: 442n8nf9zojie1JdkZqxDQJFDumBEgZmVZozLdYd5jVPSMws2oUPvNLJKca6JKojyA7zDCZCnMyYnKbY1JLNsbzWK6HNNqW" | ascii wide |
| $s7 | text | "The price for the software is $15. Payment can be made in Bitcoin or XMR." | ascii wide |
Condition
uint16be( 0 ) == 0x4d5a and 4 of themIn plain words (Heuristic)
- The file must start with “MZ” — a Windows executable (PE).
- At least 4 patterns in the rule must match.
Test this rule in your browser
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Drop a file here or click to chooseScanned locally with YARA-X. Files up to 200 MB.
References
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- aee45cc2540d49a28e765c30f1c4d0b853c1a74ea2260bd7614ece8e54c3bcb3
Licence & attribution
Author: Sekoia.io
Source repository: SEKOIA.IO Community @ a438a5901a
Licence: Detection Rule License 1.1 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 190977d4-5a7a-4e15-8f90-085f82ec56c8
Metadata
| version | 1.0 |
|---|---|
| classification | TLP:CLEAR |
Tags:FILE
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