meshagent | 783a11c9d579afa9a6324da21b392913df55ea33799b99a4e2c93eceb51fca76

Analysis

max time kernel
145s
max time network
154s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
15/04/2026, 15:19

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General

Target
Sentinel.exe
Size 3.6MB
Sample260415-sqffcady2s
SHA256 783a11c9d579afa9a6324da21b392913df55ea33799b99a4e2c93eceb51fca76
MD5 11f6e61fad7a79e172827fe5fcdb0aa5
SHA1 9704e76d6e85f86586b8a2e1b930d3a579098020
SHA512 4f414386dc1f994c45f4dc98dc16a4fc77ddf25763c436aa48e51e1be539a864ebe3fd41dd9c4fed47851b98dd876cee872dfbb143dae31c52ca9757e90f8986
SSDEEP 49152:lfEV3ugKeuWoAkf6bRexQlNIdwB0pJCWJ0+1NaZPwqZZPa:lfEYnnfKthWq+1oZPa
TLSH
T1C906BF02FB824571F8A705B811BB637E9D7D69604728D4C3C7D42DE98D316E0AE3B39A
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

backdoor sentinel connections discovery meshagent rat trojan

Malware Config

Extracted

Family

meshagent

Version

Botnet

Sentinel Connections

http://meshserver.net:443/agent.ashx

Attributes

mesh_id
0x8CD5A26AEEC0CAE34887959E8BB7B59405EAAFA59D881B900A107C7E15E4903CA2938A5C3F0376B3970E6098DBEEED2A
server_id
17FE2257E50AE3385ACEC631087405613193F8D5C915B47F123D049FB525022969CA4D12B37B50C77B3D3D4BF886BC66
wss
wss://meshserver.net:443/agent.ashx

Signatures

Family: MeshAgent
MeshAgent is an open source remote access trojan written in C++.
rat trojan backdoor meshagent

Detects MeshAgent payload 3 IoCs

resource	yara_rule
behavioral2/files/0x001a00000002b4c0-1.dat	family_meshagent
behavioral2/memory/4928-4-0x0000000000610000-0x00000000009B0000-memory.dmp	family_meshagent
behavioral2/memory/3652-8-0x00000000001E0000-0x0000000000580000-memory.dmp	family_meshagent

Executes dropped EXE 1 IoCs

pid	Process
3652	Sentinel.exe

Enumerates connected drives 3 TTPs 23 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
File opened (read-only)	\??\Z:	Sentinel.exe
File opened (read-only)	\??\V:	Sentinel.exe
File opened (read-only)	\??\X:	Sentinel.exe
File opened (read-only)	\??\A:	Sentinel.exe
File opened (read-only)	\??\O:	Sentinel.exe
File opened (read-only)	\??\P:	Sentinel.exe
File opened (read-only)	\??\R:	Sentinel.exe
File opened (read-only)	\??\S:	Sentinel.exe
File opened (read-only)	\??\B:	Sentinel.exe
File opened (read-only)	\??\E:	Sentinel.exe
File opened (read-only)	\??\G:	Sentinel.exe
File opened (read-only)	\??\H:	Sentinel.exe
File opened (read-only)	\??\I:	Sentinel.exe
File opened (read-only)	\??\L:	Sentinel.exe
File opened (read-only)	\??\M:	Sentinel.exe
File opened (read-only)	\??\Q:	Sentinel.exe
File opened (read-only)	\??\J:	Sentinel.exe
File opened (read-only)	\??\K:	Sentinel.exe
File opened (read-only)	\??\N:	Sentinel.exe
File opened (read-only)	\??\T:	Sentinel.exe
File opened (read-only)	\??\U:	Sentinel.exe
File opened (read-only)	\??\W:	Sentinel.exe
File opened (read-only)	\??\Y:	Sentinel.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\OEM\CustomizationFiles\Sentinel.exe	Sentinel.exe
File opened for modification	C:\Windows\OEM\CustomizationFiles\Sentinel.exe	Sentinel.exe
File created	C:\Windows\OEM\CustomizationFiles\log.dat	Sentinel.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Sentinel.exe

C:\Users\Admin\AppData\Local\Temp\Sentinel.exe
"C:\Users\Admin\AppData\Local\Temp\Sentinel.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:4928

C:\Windows\OEM\CustomizationFiles\Sentinel.exe
"C:\Windows\OEM\CustomizationFiles\Sentinel.exe" /s
1⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Windows directory
PID:3652

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Sentinel.exe

Path C:\Windows\OEM\CustomizationFiles\Sentinel.exe
Size 3.6MB
SHA256 783a11c9d579afa9a6324da21b392913df55ea33799b99a4e2c93eceb51fca76
MD5 11f6e61fad7a79e172827fe5fcdb0aa5
SHA1 9704e76d6e85f86586b8a2e1b930d3a579098020
SHA512 4f414386dc1f994c45f4dc98dc16a4fc77ddf25763c436aa48e51e1be539a864ebe3fd41dd9c4fed47851b98dd876cee872dfbb143dae31c52ca9757e90f8986
SSDEEP 49152:lfEV3ugKeuWoAkf6bRexQlNIdwB0pJCWJ0+1NaZPwqZZPa:lfEYnnfKthWq+1oZPa
TLSH
T1C906BF02FB824571F8A705B811BB637E9D7D69604728D4C3C7D42DE98D316E0AE3B39A
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3652-8-0x00000000001E0000-0x0000000000580000-memory.dmp

Download

memory/4928-4-0x0000000000610000-0x00000000009B0000-memory.dmp