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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-54-230-206-189.atl50.r.cloudfront.net on port 80 using the HTTP protocol.
Publisher:
Trend Corp.  (signed by Wenchao Zhang)

Product:
Trend Service

Description:
Service

Version:
3.0.0.54

MD5:
3aa77ab832cb8d6187205a8e4e50589a

SHA-1:
341444a738d2e9f9b3bf6301f0c8de77b78ca578

SHA-256:
c773d9e05fcf243ac9e84fdd8b64b000055ccf691628754eff00ce655ef0fdbe

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
4/24/2024 7:28:45 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Elex (M)
16.8.10.12

File size:
205.2 KB (210,128 bytes)

Product version:
3.0.0.54

Original file name:
TSvr

File type:
Executable application (Win32 EXE)

Language:
kiina (yksinkertaistettu, Kiina)

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

Digital Signature
Signed by:
Wenchao Zhang

Authority:
thawte, Inc.

Valid from:
8/1/2016 3:00:00 AM

Valid to:
6/9/2017 2:59:59 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:
8/8/2016 9:23:52 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
3072:CAY5buENrtNokCwH14Onfzr5AeIcwLJ6UM3je1CvzMjNrD1:C5bVNhCzOrr5AmO5se1WzY

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...
 
[+]

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-52-85-133-221.iad53.r.cloudfront.net  (52.85.133.221:80)

TCP (HTTP):
Connects to server-52-85-133-140.iad53.r.cloudfront.net  (52.85.133.140:80)

TCP (HTTP):
Connects to server-54-230-51-193.jfk5.r.cloudfront.net  (54.230.51.193:80)

TCP (HTTP):
Connects to server-54-230-51-13.jfk5.r.cloudfront.net  (54.230.51.13:80)

TCP (HTTP):
Connects to server-52-84-246-21.sfo20.r.cloudfront.net  (52.84.246.21:80)

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

TCP (HTTP):
Connects to server-54-230-206-77.atl50.r.cloudfront.net  (54.230.206.77:80)

TCP (HTTP):
Connects to server-54-230-206-226.atl50.r.cloudfront.net  (54.230.206.226:80)

TCP (HTTP):
Connects to server-52-84-246-181.sfo20.r.cloudfront.net  (52.84.246.181:80)

TCP (HTTP):
Connects to server-54-230-206-196.atl50.r.cloudfront.net  (54.230.206.196:80)

TCP (HTTP):
Connects to server-54-230-206-146.atl50.r.cloudfront.net  (54.230.206.146:80)

TCP (HTTP):
Connects to server-52-85-77-146.lax3.r.cloudfront.net  (52.85.77.146:80)

TCP (HTTP):
Connects to server-52-85-77-101.lax3.r.cloudfront.net  (52.85.77.101:80)

TCP (HTTP):
Connects to server-52-85-74-21.lhr3.r.cloudfront.net  (52.85.74.21:80)

TCP (HTTP):
Connects to server-52-85-74-194.lhr3.r.cloudfront.net  (52.85.74.194:80)

TCP (HTTP):
Connects to server-52-85-133-225.iad53.r.cloudfront.net  (52.85.133.225:80)

TCP (HTTP):
Connects to server-54-240-186-6.mad50.r.cloudfront.net  (54.240.186.6:80)

TCP (HTTP):
Connects to server-52-84-246-178.sfo20.r.cloudfront.net  (52.84.246.178:80)

TCP (HTTP):
Connects to server-54-192-36-112.jfk1.r.cloudfront.net  (54.192.36.112:80)

TCP (HTTP):
Connects to server-52-85-133-159.iad53.r.cloudfront.net  (52.85.133.159:80)

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