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audiosrv.exe

Microsoft @ Windows @ Operating System

Hefei Hejunzhengce Info Tech Co., Ltd.

The application audiosrv.exe, “Windows Audio Services” by Hefei Hejunzhengce Info Tech Co. has been detected as a potentially unwanted program by 7 anti-malware scanners. It runs as a windows Service named “Windows Audio Services (R2)”. While running, it connects to the Internet address 8a.eb.6132.ip4.static.sl-reverse.com on port 80 using the HTTP protocol.
Publisher:
Hefei Hejunzhengce Info Tech Co., Ltd.  (signed and verified)

Product:
Microsoft @ Windows @ Operating System

Description:
Windows Audio Services

Version:
1.7.9.4

MD5:
47c72a8a7c3c54ab44e3fa59ac4d6582

SHA-1:
37a80ae50818a1bfecb7f536530be89e08bfbf2c

SHA-256:
646353bffed63d257b06c11d98ad2c2aaeccbff2fb7132d467501faa1df0a78d

Scanner detections:
7 / 68

Status:
Potentially unwanted

Analysis date:
4/19/2024 7:20:48 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Trojan.Heur.1R1@rWAqwqeQ
654

Bitdefender
Gen:Trojan.Heur.1R1@rWAqwqeQ
1.0.20.555

Emsisoft Anti-Malware
Gen:Trojan.Heur.1R1@rWAqwqeQ
8.15.04.21.11

F-Secure
Gen:Trojan.Heur.1R1@rWAqwqeQ
11.2015-21-04_3

G Data
Gen:Trojan.Heur.1R1@rWAqwqeQ
15.4.25

MicroWorld eScan
Gen:Trojan.Heur.1R1@rWAqwqeQ
16.0.0.333

Reason Heuristics
PUP.HefeiHejunzhengceInfoTechCo (M)
15.7.24.22

File size:
3.8 MB (4,024,920 bytes)

Product version:
1.7.9.4

Copyright:
Hefei Hejunzhengce Info Tech Co., Ltd.

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\windows audio\r2\audiosrv.exe

Digital Signature
Signed by:
Hefei Hejunzhengce Info Tech Co., Ltd.

Authority:
WoSign CA Limited

Valid from:
3/6/2015 1:35:27 AM

Valid to:
12/30/2016 1:35:27 AM

Subject:
CN="Hefei Hejunzhengce Info Tech Co., Ltd.", O="Hefei Hejunzhengce Info Tech Co., Ltd.", L=Hefei, S=Anhui, C=CN

Issuer:
CN=WoSign Class 3 Code Signing CA, O=WoSign CA Limited, C=CN

Serial number:
3312D0B8D4D7941DF85AA59F134E7719

File PE Metadata
Compilation timestamp:
4/19/2015 10:37:23 AM

OS version:
5.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
49152:UwedUXcSQR+gvzUf4fQyyK1eTPwudiCTBXAF4xhUvTPTYvgI9XAhxiF:UweHhQuud1XAYhfxDF

Entry address:
0x311E44

Entry point:
55, 8B, EC, 83, C4, F0, 53, B8, C8, 36, 70, 00, E8, 0F, A3, CF, FF, A1, 34, 0C, 72, 00, 8B, 00, 80, 78, 38, 00, 74, 10, A1, 34, 0C, 72, 00, 8B, 00, E8, 56, 25, E2, FF, 84, C0, 74, 0C, A1, 34, 0C, 72, 00, 8B, 00, 8B, 10, FF, 52, 44, 8B, 0D, 98, 0B, 72, 00, A1, 34, 0C, 72, 00, 8B, 00, 8B, 15, D8, 31, 70, 00, 8B, 18, FF, 53, 40, A1, 34, 0C, 72, 00, 8B, 00, 8B, 10, FF, 52, 48, 5B, E8, AC, 58, CF, FF, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
6.7958

Developed / compiled with:
Microsoft Visual C++

Code size:
3.1 MB (3,213,824 bytes)

Service
Display name:
Windows Audio Services (R2)

Service name:
WinAudioSrv_R2

Description:
Manages audio for Windows-based programs. If this service is stopped, audio devices and effects will not function properly. If this service is disabled, any services that explicitly depend on it wil

Type:
Win32OwnProcess, InteractiveProcess


The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to 8a.eb.6132.ip4.static.sl-reverse.com  (50.97.235.138:80)

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