Win32/Formbook.AA

What is Win32/Formbook.AA infection?

In this article you will locate about the interpretation of Win32/Formbook.AA and also its adverse influence on your computer system. Such ransomware are a type of malware that is clarified by on the internet scams to demand paying the ransom by a target.

Most of the instances, Win32/Formbook.AA ransomware will instruct its victims to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has introduced to the victim’s device.

Win32/Formbook.AA Summary

These adjustments can be as follows:

  • 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.
  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the papers found on the sufferer’s hard disk — so the sufferer can no more make use of the data;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/Formbook.AA

One of the most normal networks whereby Win32/Formbook.AA are injected are:

  • By means of phishing e-mails;
  • As a consequence of user winding up on a resource that holds a harmful software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or protect against the gadget from working in a proper way – while likewise putting a ransom note that states the need for the victims to impact the payment for the function of decrypting the files or restoring the file system back to the initial problem. In many instances, the ransom money note will certainly show up when the client restarts the PC after the system has already been harmed.

Win32/Formbook.AA distribution channels.

In numerous corners of the world, Win32/Formbook.AA expands by jumps and bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom money amount might vary depending on certain regional (regional) setups. The ransom notes and also tricks of obtaining the ransom amount might differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software application.

    In specific areas, the Trojans typically wrongfully report having detected some unlicensed applications enabled on the victim’s tool. The sharp then requires the individual to pay the ransom.

    Faulty declarations about prohibited material.

    In nations where software application piracy is much less popular, this approach is not as efficient for the cyber fraudulences. Additionally, the Win32/Formbook.AA popup alert might wrongly assert to be originating from a law enforcement establishment and also will report having situated child porn or other illegal data on the tool.

    Win32/Formbook.AA popup alert might falsely claim to be deriving from a regulation enforcement institution and also will certainly report having located kid pornography or various other illegal information on the device. The alert will similarly include a need for the individual to pay the ransom.

Technical details

File Info:

crc32: A5C6EEBEmd5: 91bcbab17e61cc1d2359eab4e6e8d83bname: vnc.exesha1: 95e2529f5dd7b4244e0fe36159e1bfbe14787363sha256: 6c04a0eed76b9e8c2588a4a5523bfd2c19c4c3f1c71ba379a4cae3e019188451sha512: ec83f0b423bd7a762274bc7484ebcf0117266d728fdde4484323f247978d0e19e86b6ae53dd20d8919ba1b151b98714dbd94b99ceac0efa15f9f5e616ae9a0f8ssdeep: 3072:p5utptPs4hzT2VdIPLoiEEDZKdsyQwDkLMxHQlEVRM1o3qvuS47b8g:LQmZVaTowDZKOy7SCHQlEuvdkwtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Formbook.AA also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Gen:Variant.Razy.557850
CAT-QuickHeal Trojan.GenericPMF.S2589827
McAfee GenericRXCD-ZZ!91BCBAB17E61
Cylance Unsafe
Sangfor Malware
CrowdStrike win/malicious_confidence_100% (D)
BitDefender Gen:Variant.Razy.557850
K7GW Trojan ( 00536d121 )
K7AntiVirus Trojan ( 00536d121 )
Arcabit Trojan.Razy.D8831A
Invincea heuristic
F-Prot W32/Formbook.A.gen!Eldorado
Symantec Trojan.Formbook
ESET-NOD32 a variant of Win32/Formbook.AA
APEX Malicious
ClamAV Win.Malware.Formbook-7399661-0
Kaspersky HEUR:Trojan.Win32.Generic
NANO-Antivirus Virus.Win32.Gen.ccmw
Avast Win32:Evo-gen [Susp]
Tencent Win32.Trojan.Crypt.Htce
Ad-Aware Gen:Variant.Razy.557850
Emsisoft Gen:Variant.Razy.557850 (B)
Comodo TrojWare.Win32.Swotter.A@7i7pqi
F-Secure Trojan.TR/Crypt.ZPACK.Gen
DrWeb Trojan.PWS.Banker1.29984
TrendMicro Trojan.Win32.FormBook.SM
McAfee-GW-Edition BehavesLike.Win32.VirRansom.cc
Trapmine malicious.moderate.ml.score
FireEye Generic.mg.91bcbab17e61cc1d
Sophos Troj/Formbook-A
Ikarus Trojan-Spy.FormBook
Cyren W32/Formbook.A.gen!Eldorado
Webroot W32.Trojan.Gen
Avira TR/Crypt.ZPACK.Gen
Fortinet W32/GenKryptik.AYEB!tr
Endgame malicious (high confidence)
Microsoft TrojanSpy:Win32/Swotter.A!bit
SUPERAntiSpyware Trojan.Agent/Gen-Malagent
ZoneAlarm HEUR:Trojan.Win32.Generic
AhnLab-V3 Trojan/Win32.Formbook.C3424754
Acronis suspicious
BitDefenderTheta AI:Packer.1CFA7E501E
ALYac Gen:Variant.Razy.557850
MAX malware (ai score=85)
VBA32 BScope.TrojanPSW.Banker
TrendMicro-HouseCall Trojan.Win32.FormBook.SM
Rising Stealer.Fareit!8.170 (RDMK:cmRtazrIyKmn/383wyce53seMunm)
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_65%
GData Gen:Variant.Razy.557850
AVG Win32:Evo-gen [Susp]
Cybereason malicious.17e61c
Qihoo-360 HEUR/QVM20.1.B199.Malware.Gen

How to remove Win32/Formbook.AA ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft1

Run the setup file.

Run Setup.exe
GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

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

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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