YARA · Malpedia signator rules
MALPEDIA_Win_Rerdom_Auto
autogenerated rule brought to you by yara-signator
- Author
- Felix Bilstein - yara-signator at cocacoding dot com
- Date
- 2026-05-04
- Modified
- 2026-05-18
- Score / Quality
- 75 / 75
What this rule detects
autogenerated rule brought to you by yara-signator
Associated malware family: Rerdom.
It defines 10 patterns (0 text, 10 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
win-rerdom-auto.yarCreative Commons Attribution-ShareAlike 4.0
rule MALPEDIA_Win_Rerdom_Auto : FILE
{
meta:
= "autogenerated rule brought to you by yara-signator"
= "Felix Bilstein - yara-signator at cocacoding dot com"
= "501fef49-f4ef-5ba3-9b54-b6efe6f3e9cd"
= "2026-05-04"
= "2026-05-18"
= "https://malpedia.caad.fkie.fraunhofer.de/details/win.rerdom"
= "https://github.com/malpedia/signator-rules//blob/c901f97b7df03e41917da74c2a84b04c227316c2/rules/win.rerdom_auto.yar#L1-L132"
= "N/A"
= "4950604860bcc15ae559947ccedcc1cf6898fc775c612ba18d8a65acb58eb3d9"
= 75
= 75
= "FILE"
= "1"
= "yara-signator v0.6.0"
= "callsandjumps;datarefs;binvalue"
= "20260422"
= "a182e35da64e6d71cb55f125c4d4225196523f14"
= "20260504"
= "CC BY-SA 4.0"
= "TLP:WHITE"
strings:
$sequence_0 = { 83ec50 53 56 8bf2 33db 8bd1 8d45dc }
$sequence_1 = { 5a 66891448 5e 5d 5b c3 33c0 }
$sequence_2 = { 8b864c010000 6a00 ff3407 ff15???????? 8b864c010000 ff3407 ffd3 }
$sequence_3 = { 55 8bec 81ec1c020000 53 8b5d10 33d2 33c0 }
$sequence_4 = { 53 68a5000000 6805020000 ff75f8 8d45ac 50 }
$sequence_5 = { 85c0 7421 8b8fd4000000 33d2 42 89560c 83f9ff }
$sequence_6 = { 83c404 5e 5d c22400 55 8bec }
$sequence_7 = { 56 8d8578feffff eb0b 6800010000 8d858cfeffff 57 50 }
$sequence_8 = { 33c0 40 ebf8 8b15???????? 56 85d2 742b }
$sequence_9 = { 6a02 8975f4 895df8 ff15???????? 2bc7 7412 48 }
condition:
7 of them and filesize < 352256
}
Strings (10 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $sequence_0 | hex | { 83ec50 53 56 8bf2 33db 8bd1 8d45dc } | |
| $sequence_1 | hex | { 5a 66891448 5e 5d 5b c3 33c0 } | |
| $sequence_2 | hex | { 8b864c010000 6a00 ff3407 ff15???????? 8b864c010000 ff3407 ffd3 } | |
| $sequence_3 | hex | { 55 8bec 81ec1c020000 53 8b5d10 33d2 33c0 } | |
| $sequence_4 | hex | { 53 68a5000000 6805020000 ff75f8 8d45ac 50 } | |
| $sequence_5 | hex | { 85c0 7421 8b8fd4000000 33d2 42 89560c 83f9ff } | |
| $sequence_6 | hex | { 83c404 5e 5d c22400 55 8bec } | |
| $sequence_7 | hex | { 56 8d8578feffff eb0b 6800010000 8d858cfeffff 57 50 } | |
| $sequence_8 | hex | { 33c0 40 ebf8 8b15???????? 56 85d2 742b } | |
| $sequence_9 | hex | { 6a02 8975f4 895df8 ff15???????? 2bc7 7412 48 } |
Condition
7 of them and filesize < 352256In plain words (Heuristic)
- The file must be smaller than 352256 (a cheap guard that skips large files).
- At least 7 patterns in the rule must match.
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Licence & attribution
Author: Felix Bilstein - yara-signator at cocacoding dot com
Source repository: Malpedia signator rules @ c901f97b7d
Licence: Creative Commons Attribution-ShareAlike 4.0 (repository licence)
Mirrored via YARA Forge 20260927, which prefixes rule names with the source and adds normalised meta fields.
Rule id: 501fef49-f4ef-5ba3-9b54-b6efe6f3e9cd
Metadata
| version | 1 |
|---|---|
| tool | yara-signator v0.6.0 |
| signator_config | callsandjumps;datarefs;binvalue |
| malpedia_rule_date | 20260422 |
| malpedia_hash | a182e35da64e6d71cb55f125c4d4225196523f14 |
| malpedia_version | 20260504 |
| malpedia_license | CC BY-SA 4.0 |
| malpedia_sharing | TLP:WHITE |
Tags:FILE
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