YARA · Avast / Gen Digital IOC
AVASTTI_Manjusaka_Payload_Elf
No description has been set in the source file - AvastTI
- Author
- Gen Threat Labs
- Date
- 2022-08-19
- Modified
- 2026-03-11
- Score / Quality
- 75 / 90
What this rule detects
No description has been set in the source file - AvastTI
Associated malware family: Manjusaka.
It defines 9 patterns (9 text, 0 hex, 0 regex).
Summary generated from the rule's metadata and condition.
Rule source
Includes the imports and 1 rule(s) it depends on needed to compile it on its own.
private rule AVASTTI_ELF_PRIVATE
{
meta:
= "No description has been set in the source file - AvastTI"
= "Avast Threat Intel Team"
= "38aa7852-e7ea-5b90-a5f6-0862ad19a051"
= "2022-08-19"
= "2026-03-11"
= "https://github.com/avast/ioc"
= "https://github.com/avast/ioc/blob/a450ddabed95984422909c75ac52b6841f685983/Manjusaka/Manjusaka.yar#L1-L7"
= "N/A"
= "eb05e5d53bb8dea91467a76a164542894cdb1355cf3909f56818e27c589344ec"
= 75
= 90
= ""
strings:
$h01 = { 7F 45 4C 46 (01|02) (01|02) 01 }
condition:
$h01 at 0
}
rule AVASTTI_Manjusaka_Payload_Elf
{
meta:
= "No description has been set in the source file - AvastTI"
= "Gen Threat Labs"
= "010398f6-ca9b-58b4-a9d8-12428f649ffc"
= "2022-08-19"
= "2026-03-11"
= "https://github.com/gendigitalinc/ioc"
= "https://github.com/avast/ioc/blob/a450ddabed95984422909c75ac52b6841f685983/Manjusaka/Manjusaka.yar#L95-L122"
= "N/A"
= "0063e5007566e0a7e8bfd73c4628c6d140b332df4f9afbb0adcf0c832dd54c2b"
= "76eb9af0e2f620016d63d38ddb86f0f3f8f598b54146ad14e6af3d8f347dd365"
= "0a5174b5181fcd6827d9c4a83e9f0423838cbb5a6b23d012c3ae414b31c8b0da"
= "63e7f6fa89faa88b346d0cceddf2ef2e3ebf5d5828aa0087663c227422041db7"
= "400855b63b8452221869630c58b7ab03373dabf77c0f10df635e746c13f98ea9"
= "4eb337c12f0e0ee73b3209bed4b819719c4af9f63f3e81dbc3bbf06212450f1c"
= "bbc496788381b57b3ea2814dd61a824d552233f9c5f73287f8bc284252fbedfe"
= 75
= 90
= ""
strings:
$s01 = "proc/meminfo/proc/uptime/etc/os-releaseVERSION_ID=NAME=DISTRIB_ID"
$s02 = "/root/.cargo/registry/src/mirrors.ustc.edu.cn"
$s03 = "cmdlineexecwdassertion failed"
$s04 = "/etc/passwd/root/"
$s11 = "./protos/cs.rstargetpidAgentsagentAgentUpdatesleepenckeysysinfoConfigPluginExecPluginLoadReqCwd"
$s12 = "ReqScreenH"
$s13 = "manjusakahttp:"
$s14 = "pluginexecpluginloadreqcwdreqcmd"
$s15 = "/NPSC2/npc/libs/"
condition:
AVASTTI_ELF_PRIVATE and ( all of ( $s0* ) and any of ( $s1* ) )
}
Strings (9 patterns)
| Identifier | Type | Value | Modifiers |
|---|---|---|---|
| $s01 | text | "proc/meminfo/proc/uptime/etc/os-releaseVERSION_ID=NAME=DISTRIB_ID" | |
| $s02 | text | "/root/.cargo/registry/src/mirrors.ustc.edu.cn" | |
| $s03 | text | "cmdlineexecwdassertion failed" | |
| $s04 | text | "/etc/passwd/root/" | |
| $s11 | text | "./protos/cs.rstargetpidAgentsagentAgentUpdatesleepenckeysysinfoConfigPluginExecPluginLoadReqCwd" | |
| $s12 | text | "ReqScreenH" | |
| $s13 | text | "manjusakahttp:" | |
| $s14 | text | "pluginexecpluginloadreqcwdreqcmd" | |
| $s15 | text | "/NPSC2/npc/libs/" |
Condition
AVASTTI_ELF_PRIVATE and ( all of ( $s0* ) and any of ( $s1* ) )In plain words (Heuristic)
- All patterns in ( $s0* ) must match.
- At least one pattern in ( $s1* ) must match.
- Depends on the rule AVASTTI_ELF_PRIVATE.
Test this rule in your browser
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References
Sample hashes
Hashes of samples the author lists in the rule's meta (look them up in your threat-intelligence platform).
- 0063e5007566e0a7e8bfd73c4628c6d140b332df4f9afbb0adcf0c832dd54c2b
- 76eb9af0e2f620016d63d38ddb86f0f3f8f598b54146ad14e6af3d8f347dd365
- 0a5174b5181fcd6827d9c4a83e9f0423838cbb5a6b23d012c3ae414b31c8b0da
- 63e7f6fa89faa88b346d0cceddf2ef2e3ebf5d5828aa0087663c227422041db7
- 400855b63b8452221869630c58b7ab03373dabf77c0f10df635e746c13f98ea9
- 4eb337c12f0e0ee73b3209bed4b819719c4af9f63f3e81dbc3bbf06212450f1c
Licence & attribution
Author: Gen Threat Labs
Source repository: Avast / Gen Digital IOC @ a450ddabed
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: 010398f6-ca9b-58b4-a9d8-12428f649ffc
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