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tsvr.exe

Trend Service

Wenchao Zhang

The application tsvr.exe by Wenchao Zhang has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “IhPul”. While running, it connects to the Internet address server-54-230-206-68.atl50.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Trend Corp.  (signed by Wenchao Zhang)

Product:
Trend Service

Description:
Service

Version:
3.0.0.56

MD5:
16fb6c35af46d30aa673e3f1971eee41

SHA-1:
3ba60013d530e1e2a59023a52a0187adb2d792c2

SHA-256:
fbc4d2721fa6a66203c684a554c128874fe9d2cf5b0c4e661b6540230a1da360

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
5/27/2024 3:11:55 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.8.12.4

File size:
205.2 KB (210,128 bytes)

Product version:
3.0.0.56

Original file name:
TSvr

File type:
Executable application (Win32 EXE)

Language:
Chinese (Simplified, PRC)

Common path:
C:\users\{user}\appdata\roaming\setup1\tsvr.exe

Digital Signature
Signed by:
Wenchao Zhang

Authority:
thawte, Inc.

Valid from:
8/1/2016 8:00:00 AM

Valid to:
6/9/2017 7:59:59 AM

Subject:
CN=Wenchao Zhang, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
46DD4E098507D172BD740670D843017A

File PE Metadata
Compilation timestamp:
8/12/2016 9:36:07 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:BAY5buENrtNokCwH14Onfzr5RLIcwLJ6UM3je1MVzMjNr4:B5bVNhCzOrr5RLO5se1mzY

Entry address:
0x1BA78

Entry point:
E8, 87, 02, 00, 00, E9, 03, FE, FF, FF, FF, 25, F8, F2, 41, 00, FF, 25, FC, F2, 41, 00, FF, 25, 00, F3, 41, 00, FF, 25, 04, F3, 41, 00, FF, 25, 08, F3, 41, 00, FF, 25, 0C, F3, 41, 00, FF, 25, 10, F3, 41, 00, FF, 25, 14, F3, 41, 00, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 68, 19, BB, 41, 00, 64, FF, 35, 00, 00, 00, 00, 8B, 44, 24, 10, 89, 6C, 24, 10, 8D, 6C, 24, 10, 2B, E0, 53, 56, 57, A1, 00, 50, 42, 00, 31, 45, FC, 33, C5, 50, 89, 65, E8, FF, 75, F8, 8B, 45, FC, C7, 45, FC, FE, FF, FF, FF...
 
[+]

Entropy:
6.2446

Code size:
117 KB (119,808 bytes)

Service
Display name:
IhPul

Type:
Win32OwnProcess


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

TCP (HTTP):
Connects to server-54-230-95-148.fra2.r.cloudfront.net  (54.230.95.148:80)

TCP (HTTP):
Connects to server-54-230-95-128.fra2.r.cloudfront.net  (54.230.95.128:80)

TCP (HTTP):
Connects to server-54-239-132-117.sfo9.r.cloudfront.net  (54.239.132.117:80)

TCP (HTTP):
Connects to server-52-84-246-107.sfo20.r.cloudfront.net  (52.84.246.107:80)

TCP (HTTP):
Connects to euve246913.serverprofi24.com  (62.75.142.165:80)

TCP (HTTP):
Connects to server-52-85-83-232.lax1.r.cloudfront.net  (52.85.83.232:80)

TCP (HTTP):
Connects to server-52-85-83-188.lax1.r.cloudfront.net  (52.85.83.188:80)

TCP (HTTP):
Connects to server-54-239-132-4.sfo9.r.cloudfront.net  (54.239.132.4:80)

TCP (HTTP):
Connects to server-52-85-83-103.lax1.r.cloudfront.net  (52.85.83.103:80)

TCP (HTTP):
Connects to server-52-84-246-10.sfo20.r.cloudfront.net  (52.84.246.10:80)

TCP (HTTP):
Connects to server-54-239-132-220.sfo9.r.cloudfront.net  (54.239.132.220:80)

TCP (HTTP):
Connects to server-54-239-132-12.sfo9.r.cloudfront.net  (54.239.132.12:80)

TCP (HTTP):
Connects to server-54-230-95-152.fra2.r.cloudfront.net  (54.230.95.152:80)

TCP (HTTP):
Connects to server-54-230-95-13.fra2.r.cloudfront.net  (54.230.95.13:80)

TCP (HTTP):
Connects to server-54-230-216-97.mrs50.r.cloudfront.net  (54.230.216.97:80)

TCP (HTTP):
Connects to server-54-230-216-56.mrs50.r.cloudfront.net  (54.230.216.56:80)

TCP (HTTP):
Connects to server-54-230-206-68.atl50.r.cloudfront.net  (54.230.206.68:80)

TCP (HTTP):
Connects to server-54-230-0-83.lhr5.r.cloudfront.net  (54.230.0.83:80)

TCP (HTTP):
Connects to server-54-230-0-7.lhr5.r.cloudfront.net  (54.230.0.7:80)

TCP (HTTP):
Connects to server-54-230-0-225.lhr5.r.cloudfront.net  (54.230.0.225:80)

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