Backdoor:Win32/Poison.BN

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Backdoor:Win32/Poison.BN detection means that your PC is in big danger. This computer virus can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Removing it requires some peculiar steps that must be taken as soon as possible.
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Backdoor:Win32/Poison.BN detection is a virus detection you can spectate in your computer. It generally shows up after the preliminary actions on your computer – opening the untrustworthy e-mail, clicking the advertisement in the Web or mounting the program from unreliable sources. From the second it shows up, you have a short time to do something about it before it starts its destructive activity. And be sure – it is far better not to wait for these destructive actions.

What is Backdoor:Win32/Poison.BN virus?

Backdoor:Win32/Poison.BN is ransomware-type malware. It looks for the documents on your disk drive, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents locked, this virus additionally does a lot of harm to your system. It alters the networking setups in order to avoid you from checking out the removal guidelines or downloading the antivirus. In rare cases, Backdoor:Win32/Poison.BN can also stop the launching of anti-malware programs.

Backdoor:Win32/Poison.BN Summary

In total, Backdoor:Win32/Poison.BN ransomware actions in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • Unconventionial language used in binary resources: Sutu;
  • The binary contains an unknown PE section name indicative of packing;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Anomalous binary characteristics;
  • Ciphering the files kept on the victim’s disk drives — so the victim cannot use these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-virus programs

Ransomware has been a headache for the last 4 years. It is difficult to imagine a more hazardous virus for both individuals and organizations. The algorithms utilized in Backdoor:Win32/Poison.BN (typically, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need more time than our galaxy currently exists, and possibly will exist. However, that virus does not do all these horrible things instantly – it may take up to several hours to cipher all of your files. Thus, seeing the Backdoor:Win32/Poison.BN detection is a clear signal that you need to start the elimination process.

Where did I get the Backdoor:Win32/Poison.BN?

Usual methods of Backdoor:Win32/Poison.BN distribution are typical for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait emails and hacktools. Bait e-mails are a relatively modern method in malware spreading – you get the email that mimics some routine notifications about deliveries or bank service conditions changes. Within the e-mail, there is a malicious MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks quite easy, however, still requires a lot of attention. Malware can hide in various spots, and it is better to prevent it even before it invades your system than to rely upon an anti-malware program. Simple cybersecurity knowledge is just an important item in the modern-day world, even if your relationship with a computer stays on YouTube videos. That can save you a lot of time and money which you would spend while looking for a solution.

Backdoor:Win32/Poison.BN malware technical details

File Info:

name: D4B934356463943A4263.mlw
path: /opt/CAPEv2/storage/binaries/c75b84b9c9e2f7e1077b4eb9573cbb61e7fd0584a64106d9cbc1969a5051aa32
crc32: 21B629BB
md5: d4b934356463943a42633ce060d21500
sha1: 41e3712e3eaab336cfe17421bd887223800de823
sha256: c75b84b9c9e2f7e1077b4eb9573cbb61e7fd0584a64106d9cbc1969a5051aa32
sha512: 4998c6bfec81f61769d57b72f0ddf7e64bc9c70860b58f6fe4bc26ee5ce4d32e62a4e445ad27098aa22ce33f1d8977d155491e89eb0135031a16db17beee33af
ssdeep: 6144:uqiic+1U25W/MXddY3VFLV/kVWOOFeaLQd1:wicdE0FFLFIOFeag
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1BD54025F1FA75A03F11AA7B48A67FB9557B83C473962720FCBC0311256B229446A2FF0
sha3_384: 65a259a71262a05b9580a9ffff44c9691d3d1daf2701abfdbd242fe550b6bcc1f170a175a57afac8e1390da93e58ccce
ep_bytes: e959e4ffff0000000000000007c7f6fb
timestamp: 2012-03-13 19:54:44

Version Info:

CompanyName: Аdobe Systems, Inc.
FileDescription: Аdobe® Flаsh® Player Installer/Uninstaller 11.1 r103
FileVersion: 11,1,103,55
InternalName: Аdobe® Flаsh® Plаyer Installer/Uninstaller 11.1
LegalCopyright: Copyright © 1996-2011 Аdobe, Inc.
LegalTrademarks: Аdobe® Flash® Player
OriginalFilename: FlаshUtil.exe
ProductName: Flаsh® Player Installer/Uninstaller
ProductVersion: 11,1,103,55
Translation: 0x0409 0x04b0

Backdoor:Win32/Poison.BN also known as:

BkavW32.AIDetect.malware1
LionicTrojan.Win32.Xorist.tq1X
Elasticmalicious (high confidence)
ClamAVWin.Trojan.Agent-356074
FireEyeGeneric.mg.d4b934356463943a
McAfeeGenericRXAA-AA!D4B934356463
CylanceUnsafe
SangforSuspicious.Win32.Save.a
K7AntiVirusTrojan ( 0055e3991 )
AlibabaRansom:Win32/Xorist.76f5437b
K7GWTrojan ( 0055e3991 )
Cybereasonmalicious.564639
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/Spy.KeyLogger.NTE
APEXMalicious
CynetMalicious (score: 100)
KasperskyTrojan-Ransom.Win32.Xorist.gb
BitDefenderGen:Variant.Barys.158895
NANO-AntivirusTrojan.Win32.Xorist.bttmro
MicroWorld-eScanGen:Variant.Barys.158895
AvastWin32:Malware-gen
TencentMalware.Win32.Gencirc.1149242c
Ad-AwareGen:Variant.Barys.158895
ComodoMalware@#2u8gaphzxciwx
DrWebTrojan.Fakealert.29348
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_FRS.0NA103BL20
IkarusBackdoor.Poison
GDataGen:Variant.Barys.158895
JiangminTrojan/Xorist.bn
eGambitUnsafe.AI_Score_100%
AviraTR/Dropper.VB.Gen
KingsoftWin32.Troj.Undef.(kcloud)
ArcabitTrojan.Barys.D26CAF
ViRobotTrojan.Win32.A.Xorist.316416
MicrosoftBackdoor:Win32/Poison.BN
AhnLab-V3Trojan/Win32.Xorist.C2500990
BitDefenderThetaAI:Packer.EC6313E31F
ALYacGen:Variant.Barys.158895
MAXmalware (ai score=100)
VBA32Trojan.VB.FlyCryptor
TrendMicro-HouseCallTROJ_FRS.0NA103BL20
RisingRansom.Xorist!8.4A0 (CLOUD)
YandexTrojan.Xorist!FsF7xZh9Nk8
SentinelOneStatic AI – Suspicious PE
FortinetW32/Refroso.DZP!tr
WebrootW32.Trojan.Gen
AVGWin32:Malware-gen
PandaGeneric Malware
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Backdoor:Win32/Poison.BN?

Backdoor:Win32/Poison.BN malware is extremely hard to delete manually. It places its files in several locations throughout the disk, and can recover itself from one of the parts. Additionally, countless modifications in the registry, networking setups and Group Policies are really hard to locate and return to the original. It is better to use a specific app – exactly, an anti-malware app. GridinSoft Anti-Malware will definitely fit the best for virus removal purposes.

Why GridinSoft Anti-Malware? It is very lightweight and has its detection databases updated almost every hour. In addition, it does not have such bugs and weakness as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for removing malware of any type.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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