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maintainer.exe

Spring Smart

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by Spring Smart has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Spring Smart  (signed and verified)

Version:
1.0.5525.17681

MD5:
c41f3f61a2dbe759c3623d4a8da69cc5

SHA-1:
0cfd36023f5a1b0c9a72363d027fb7237a74ff29

SHA-256:
4f545abe74572dfcbcd74d45bdf5afd5758d38b3b29c3c377f35b0851bd76147

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
4/26/2024 6:22:03 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.SpringSmart (M)
16.1.31.1

File size:
120.8 KB (123,688 bytes)

Product version:
1.0.5525.17681

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\panda security\panda security protection\lostandfound\maintainer.exe

Digital Signature
Signed by:
Spring Smart

Authority:
VeriSign, Inc.

Valid from:
8/21/2013 8:00:00 PM

Valid to:
8/22/2015 7:59:59 PM

Subject:
CN=Spring Smart, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Spring Smart, L=Santa Monica, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
5D69FD87A1BCECDB8891F45F148E34E2

File PE Metadata
Compilation timestamp:
2/16/2015 12:49:29 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:O3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mabcQ/Wm1sWjcdlPQI0ypxCO8m:iK35/9oxfTk+lvn6lPQI0ypxCOu3bZvG

Entry address:
0x8A72

Entry point:
E8, 95, 57, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, B2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 79, 45, 00, 00, 59, 83, A5, E0, FC, FF, FF, 00, 6A, 4C, 8D, 85, E4, FC, FF, FF, 6A, 00, 50, E8, 7A, F3, FF, FF, 8D, 85, E0, FC, FF, FF, 89, 85, D8, FC, FF, FF, 8D, 85, 30, FD, FF, FF, 83, C4, 0C, 89, 85, DC, FC, FF, FF, 89, 85, E0, FD, FF, FF, 89, 8D, DC, FD, FF, FF, 89, 95, D8, FD, FF, FF, 89, 9D, D4, FD, FF, FF, 89, B5, D0, FD, FF, FF, 89, BD, CC...
 
[+]

Entropy:
6.1811

Code size:
68.5 KB (70,144 bytes)

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