PHP:BackDoor-BU [Trj] (file analysis)

The PHP:BackDoor-BU [Trj] is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What PHP:BackDoor-BU [Trj] virus can do?

Injection (inter-process)
Injection with CreateRemoteThread in a remote process
Uses Windows utilities for basic functionality
A potential decoy document was displayed to the user
Network activity detected but not expressed in API logs

Related domains:

z.whorecord.xyz

a.tomx.xyz

How to determine PHP:BackDoor-BU [Trj]?


File Info:
crc32: 2D9AF4C7
md5: 6d78b707a58ed77d82b334b041f057bb
name: upload_file
sha1: 99495e18b0c4387440bb04f526abd8745c7d4d36
sha256: cf4bdff8652e4e5128f1a551c03b2c62ae2fcd6b6471ba34365813893aa9c74e
sha512: 8214708f175330e5a53419ab5a09abeb25c5a8709bbee2a99e9fb2e7fdced97b7ad991fc83d389d521cc04f9819cd96c5a25e869948b1bfcd052f0b2aafc93a3
ssdeep: 1536:FMKmMmBwNuXKLSZPR5YTcy9MQKw3rpI4pSkAl49L9P7gD:FGMCR69Kw324pzJQ
type: PHP script, UTF-8 Unicode text, with very long lines, with CRLF line terminators

Version Info:
0: [No Data]

PHP:BackDoor-BU [Trj] also known as:

Bkav	VEX.Webshell
MicroWorld-eScan	Backdoor.PHP.WebShell.BD
Sangfor	Malware
Baidu	PHP.Backdoor.WebShell.y
Avast	PHP:BackDoor-BU [Trj]
Kaspersky	Trojan.PHP.Agent.vf
BitDefender	Backdoor.PHP.WebShell.BD
NANO-Antivirus	Trojan.Script.WebShell.fgjclq
Tencent	Bk.YDWebShell.PHP.BackdoorGen.11100802
Ad-Aware	Backdoor.PHP.WebShell.BD
Comodo	TrojWare.PHP.WebShell.NAH@818kmp
DrWeb	PHP.Shell.26
FireEye	Backdoor.PHP.WebShell.BD
Microsoft	Backdoor:PHP/Webshell.G!MSR
Arcabit	Backdoor.PHP.WebShell.BD
ZoneAlarm	Trojan.PHP.Agent.vf
GData	Backdoor.PHP.WebShell.BD
AhnLab-V3	PHP/Webshell.S5
ALYac	Backdoor.PHP.WebShell.BD
MAX	malware (ai score=84)
ESET-NOD32	PHP/WebShell.NGH
Rising	Backdoor.WebShell-1251/PHP!1.A59F (CLASSIC)
Ikarus	Backdoor.PHP.WebShell
Fortinet	BAT/WebShell.BD!tr
AVG	PHP:BackDoor-BU [Trj]
Qihoo-360	php.script.spyeyes.1

How to remove PHP:BackDoor-BU [Trj]?

Download and install GridinSoft Anti-Malware.
Open GridinSoft Anti-Malware and perform a “Standard scan“.
“Move to quarantine” all items.
Open “Tools” tab – Press “Reset Browser Settings“.
Select proper browser and options – Click “Reset”.
Restart your computer.

PHP:BackDoor-BU [Trj] (file analysis)