Backdoor:Win32/Agent

What is Backdoor:Win32/Agent infection?

In this post you will discover about the meaning of Backdoor:Win32/Agent and also its negative effect on your computer system. Such ransomware are a kind of malware that is clarified by on-line frauds to require paying the ransom money by a victim.

In the majority of the cases, Backdoor:Win32/Agent ransomware will advise its sufferers to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the victim’s device.

Backdoor:Win32/Agent Summary

These adjustments can be as complies with:

• Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
• Injection with CreateRemoteThread in a remote process;
• Attempts to connect to a dead IP:Port (1 unique times);
• Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
• Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

  Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

• A process created a hidden window;
• Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Uses Windows utilities for basic functionality;
• Deletes its original binary from disk;
• Code injection with CreateRemoteThread in a remote process;
• Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
  C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

  The registry run keys perform the same action, and can be located in different locations:

  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
  • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
• Exhibits possible ransomware file modification behavior;
• Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the files situated on the target’s hard drive — so the victim can no longer utilize the data;
• Preventing routine accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Backdoor:Win32/Agent

One of the most regular channels whereby Backdoor:Win32/Agent Ransomware are injected are:

• By ways of phishing emails;
• As a repercussion of user ending up on a source that organizes a harmful software;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the sufferer’s PC or stop the device from operating in an appropriate manner – while likewise positioning a ransom money note that mentions the requirement for the sufferers to effect the settlement for the objective of decrypting the records or bring back the file system back to the preliminary condition. In a lot of circumstances, the ransom note will certainly show up when the customer restarts the PC after the system has actually already been damaged.

Backdoor:Win32/Agent circulation networks.

In numerous edges of the world, Backdoor:Win32/Agent expands by leaps and bounds. However, the ransom money notes and also tricks of extorting the ransom money quantity may differ depending on certain local (regional) settings. The ransom notes and also methods of obtaining the ransom money quantity may differ depending on particular regional (local) settings.

For example:

Faulty signals concerning unlicensed software program.

In certain areas, the Trojans frequently wrongfully report having actually identified some unlicensed applications enabled on the victim’s gadget. The alert after that requires the user to pay the ransom.

Faulty statements about prohibited material.

In countries where software application piracy is less preferred, this method is not as effective for the cyber fraudulences. Alternatively, the Backdoor:Win32/Agent popup alert may falsely declare to be deriving from a law enforcement institution and will report having located child pornography or various other illegal data on the device.

Backdoor:Win32/Agent popup alert might falsely declare to be obtaining from a regulation enforcement institution and will report having situated child porn or various other illegal information on the tool. The alert will likewise consist of a requirement for the individual to pay the ransom.

Technical details

File Info:
crc32: 9AF6A8AEmd5: 997641818b69dc853a606084801ea24dname: 997641818B69DC853A606084801EA24D.mlwsha1: 2c1d5509030b37821880a355563bd3957fb69b52sha256: 4dee9a7d929b413177ae55af84310c1435cc277191f3d35a18872832875d9346sha512: de9cb3cc393adc935f4f61a23e29c9e0717d2a89545988c481d2ffc3503ad0beef82442e1524840bca0d73f1945d1070a5f4a79137e0bee935e09bec8ebd0e08ssdeep: 768:g7LwWjdt6EwwfGViynylasPqI8BjFUw2ePS3X1wl8nVWziDKH8:CwWv6IG0LPqBgePSnu8naimctype: PE32 executable (GUI) Intel 80386, for MS Windows, Petite compressed
Version Info:
0: [No Data]

Backdoor:Win32/Agent also known as:

GridinSoft	Trojan.Ransom.Gen
Bkav	W32.AIDetect.malware1
DrWeb	Trojan.MulDrop.3879
MicroWorld-eScan	Gen:Variant.Ransom.Xdata.11
McAfee	Generic BackDoor.og
Cylance	Unsafe
VIPRE	Trojan.Win32.Generic!BT
K7AntiVirus	Trojan ( 00008a201 )
BitDefender	Gen:Variant.Ransom.Xdata.11
K7GW	Trojan ( 00008a201 )
Cybereason	malicious.18b69d
BitDefenderTheta	Gen:NN.ZexaF.34590.cmW@auxjogki
Cyren	W32/Backdoor.CYMI-1468
Symantec	Backdoor.Tabdim
TotalDefense	Win32/Bandito.F
APEX	Malicious
Avast	Win32:Delf-CR [Trj]
Kaspersky	Trojan-Dropper.Win32.Small.abt
NANO-Antivirus	Trojan.Win32.Small.flmzux
Tencent	Malware.Win32.Gencirc.10b658e2
Ad-Aware	Gen:Variant.Ransom.Xdata.11
Emsisoft	Gen:Variant.Ransom.Xdata.11 (B)
Comodo	Backdoor.Win32.Banito.AE@2lbd
F-Secure
TrendMicro	BKDR_BANITO.S
McAfee-GW-Edition	BehavesLike.Win32.Wanex.nc
FireEye	Generic.mg.997641818b69dc85
Sophos	Mal/Generic-R + Troj/Banito-G
SentinelOne	Static AI – Suspicious PE
Jiangmin	Backdoor/Agent.s
Avira	WORM/AgoBot.37221
Microsoft	Backdoor:Win32/Agent
Arcabit	Trojan.Ransom.Xdata.11
ZoneAlarm	Trojan-Dropper.Win32.Small.abt
GData	Gen:Variant.Ransom.Xdata.11
Cynet	Malicious (score: 100)
VBA32	TrojanDropper.Small
ALYac	Gen:Variant.Ransom.Xdata.11
MAX	malware (ai score=80)
Malwarebytes	Malware.Heuristic.1003
Panda	Trj/Genetic.gen
ESET-NOD32	a variant of Win32/Banito.AE
TrendMicro-HouseCall	BKDR_BANITO.S
Rising	Backdoor.Censored.a (CLOUD)
Yandex	Trojan.GenAsa!v236fhFTk3A
Ikarus	Virus.Win32.Delf
Fortinet	W32/Agent.LO!tr.bdr
AVG	Win32:Delf-CR [Trj]
CrowdStrike	win/malicious_confidence_80% (D)
Qihoo-360	Win32/Trojan.Dropper.aa0

How to remove Backdoor:Win32/Agent ransomware?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">².

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Download GridinSoft Anti-Malware

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Backdoor:Win32/Agent files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Backdoor:Win32/Agent you can always ask me in the comments for getting help.

References

1. GridinSoft Anti-Malware Review from HowToFix site:
2. More information about GridinSoft products: