Win32/Filecoder.Ishtar.B

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32/Filecoder.Ishtar.B detection usually means that your PC is in big danger. This malware can correctly be identified as ransomware – virus which ciphers your files and asks you to pay for their decryption. Stopping it requires some unusual steps that must be done as soon as possible.
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Win32/Filecoder.Ishtar.B detection is a virus detection you can spectate in your system. It often shows up after the provoking actions on your PC – opening the dubious email, clicking the banner in the Web or installing the program from suspicious sources. From the second it appears, you have a short time to do something about it before it begins its destructive action. And be sure – it is far better not to wait for these harmful things.

What is Win32/Filecoder.Ishtar.B virus?

Win32/Filecoder.Ishtar.B is ransomware-type malware. It looks for the documents on your disks, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this virus additionally does a ton of damage to your system. It alters the networking settings in order to stop you from looking for the elimination guides or downloading the antivirus. In rare cases, Win32/Filecoder.Ishtar.B can even prevent the setup of anti-malware programs.

Win32/Filecoder.Ishtar.B Summary

Summarizingly, Win32/Filecoder.Ishtar.B malware actions in the infected PC are next:

  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Dynamic (imported) function loading detected;
  • Reads data out of its own binary image;
  • Drops a binary and executes it;
  • Authenticode signature is invalid;
  • A ping command was executed with the -n argument possibly to delay analysis;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Installs itself for autorun at Windows startup;
  • Creates a copy of itself;
  • Anomalous binary characteristics;
  • Uses suspicious command line tools or Windows utilities;
  • Encrypting the files located on the target’s disks — so the victim cannot use these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of security tools

Ransomware has been a headache for the last 4 years. It is difficult to realize a more damaging virus for both individuals and businesses. The algorithms used in Win32/Filecoder.Ishtar.B (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy currently exists, and possibly will exist. However, that malware does not do all these unpleasant things instantly – it may take up to several hours to cipher all of your files. Hence, seeing the Win32/Filecoder.Ishtar.B detection is a clear signal that you need to begin the elimination procedure.

Where did I get the Win32/Filecoder.Ishtar.B?

Routine methods of Win32/Filecoder.Ishtar.B distribution are usual for all other ransomware variants. Those are one-day landing websites where victims are offered to download and install the free software, so-called bait e-mails and hacktools. Bait emails are a pretty modern strategy in malware distribution – you receive the email that mimics some routine notifications about deliveries or bank service conditions changes. Inside of the e-mail, there is an infected MS Office file, or a link which opens the exploit landing page.

Malicious email spam

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

Avoiding it looks quite easy, but still demands tons of recognition. Malware can hide in different places, and it is far better to stop it even before it gets into your system than to trust in an anti-malware program. Simple cybersecurity awareness is just an essential item in the modern world, even if your interaction with a computer stays on YouTube videos. That may save you a great deal of money and time which you would spend while seeking a fix guide.

Win32/Filecoder.Ishtar.B malware technical details

File Info:

name: 406CDF72B272C0AB0D50.mlw
path: /opt/CAPEv2/storage/binaries/7ac917ea4f032061d74147b825cc2c8e79fe5cda6d97be17a6271e1b8297bfc9
crc32: B940A3DE
md5: 406cdf72b272c0ab0d5061b2f7cdf03b
sha1: bfcfb67d8661714c6816e67fdfe6192160e29f49
sha256: 7ac917ea4f032061d74147b825cc2c8e79fe5cda6d97be17a6271e1b8297bfc9
sha512: 813808137cb50f441ec982b3c5bc60c6406c0a2e00c1206d79cd0e9b28441e0e6bf6476003bbe45da6dece086470cb21860ec1d78a8d90d4a717013e0748745b
ssdeep: 49152:Rw80cTsjkWaUHpz6krzd0T7x4PWAHcvqgTUO7:+8sjkaJ3du+WAgqg4O7
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1D7A5F01273DDC360CB669133BF29B7056EBB7C714630B95B2F880D7DA960161262DBA3
sha3_384: 2793946e86a279f130f37666f1030b3b8f5b11acf554025506a53a58a4511539f470e39fd2e2ce8da273d5a99fd9e60d
ep_bytes: e8b8d00000e97ffeffffcccccccccccc
timestamp: 2016-11-21 18:12:05

Version Info:

Translation: 0x0809 0x04b0

Win32/Filecoder.Ishtar.B also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Generic.4!e
tehtris Generic.Malware
MicroWorld-eScan Trojan.GenericKD.30758654
FireEye Generic.mg.406cdf72b272c0ab
ALYac Trojan.Ransom.Ishtar
Malwarebytes Generic.Malware/Suspicious
K7AntiVirus Trojan ( 004fccef1 )
Alibaba Trojan:Win32/Ishtar.dad62839
K7GW Trojan ( 004fccef1 )
Cybereason malicious.2b272c
Arcabit Trojan.Generic.D1D556FE
Cyren W32/Autoit.YXFT-3677
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Filecoder.Ishtar.B
APEX Malicious
Paloalto generic.ml
ClamAV Win.Ransomware.Ishtar-5399275-0
Kaspersky HEUR:Trojan.Script.Generic
BitDefender Trojan.GenericKD.30758654
NANO-Antivirus Trojan.Win32.Encoder.eipvns
Avast Win32:Trojan-gen
Tencent Win32.Trojan.Filecoder.Paca
Ad-Aware Trojan.GenericKD.30758654
Emsisoft Trojan.GenericKD.30758654 (B)
Comodo Malware@#qy37nun0jt01
F-Secure Heuristic.HEUR/AGEN.1245567
TrendMicro Ransom_ISHTAR.F116KN
McAfee-GW-Edition BehavesLike.Win32.Generic.vc
Sophos Mal/Generic-S
Ikarus Trojan.Win32.Filecoder
Jiangmin Trojan.Script.zwr
Webroot W32.Trojan.GenKD
Avira HEUR/AGEN.1245567
MAX malware (ai score=100)
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:MSIL/Cryptor
ViRobot Trojan.Win32.Z.Ishtar.2104453
GData Trojan.GenericKD.30758654
Cynet Malicious (score: 99)
AhnLab-V3 Trojan/Win32.Ishtar.R190422
McAfee Artemis!406CDF72B272
VBA32 Trojan.Autoit.Wirus
Cylance Unsafe
TrendMicro-HouseCall Ransom_ISHTAR.F116KN
Fortinet W32/Filecoder_Ishtar.B!tr
AVG Win32:Trojan-gen
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_100% (W)

How to remove Win32/Filecoder.Ishtar.B?

Win32/Filecoder.Ishtar.B malware is extremely difficult to delete manually. It stores its documents in several places throughout the disk, and can get back itself from one of the parts. In addition, countless changes in the windows registry, networking setups and Group Policies are pretty hard to discover and return to the initial. It is far better to use a specific program – exactly, an anti-malware tool. GridinSoft Anti-Malware will fit the best for malware elimination reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated just about every hour. In addition, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these details makes GridinSoft Anti-Malware ideal for taking out 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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