DELTA-STROI - 57% Detection Rate *
Did you just run into a download or a file on your computer that is digitally signed by DELTA-STROI? Some of the security products refers to the detected files as Gen:Variant.Dropper.166 and Unwanted-Program ( 0050afa91 ). The detection rate for the DELTA-STROI files collected here is 57%. Please read on for more details.
You'll typically see DELTA-STROI when clicking to run the file. The publisher name is then displayed as the "Verified publisher" in the UAC dialog as the screenshot shows:
You can view the digital signature details for DELTA-STROI with the following steps:
- Open Windows Explorer and locate the DELTA-STROI file
- Right-click the file and select Properties
- Click the Digital Signatures tab
- Click the View Certificate button
Here is a screencap of a file signed by DELTA-STROI:
As you can see in the screengrab above, Windows states that "This digital signature is OK". This means that the file has been published by DELTA-STROI and that no one has tampered with the file.
If you click the View Certificate button shown in the screengrab above, you can see all the details of the certificate, such as when it was issued, who issued the certificate, how long it is valid, and so on. You can also view the address for DELTA-STROI, such as the street name, city and country.
COMODO RSA Code Signing CA has issued the DELTA-STROI certificates. You can also see the details of the issuer by clicking the View Certificate button shown in the screenshot above.
DELTA-STROI Files
The following are the DELTA-STROI files I have collected, thanks to the FreeFixer users.
| Detection Ratio | File Name |
|---|---|
| 15/62 | TeamViewer_Tracer.exe |
| 39/61 | tw159244369.exe |
| 44/60 | tw635282.exe |
| 44/60 | tw258671359.exe |
| 44/62 | tw7046471.exe |
| 14/62 | tw45788359.exe |
Scanner and Detection Names
Here's the detection names for the DELTA-STROI files. I've grouped the detection names by each scanner engine. Thanks to VirusTotal for the scan results.
| Scanner | Detection Names |
|---|---|
| ALYac | Gen:Variant.Dropper.166 |
| AVG | SCGeneric_c.BQJB, SCGeneric_c.BAMH |
| AVware | Trojan.Win32.Generic!BT |
| Ad-Aware | Gen:Variant.Dropper.166 |
| AhnLab-V3 | Trojan/Win32.Agent.C1912694, Dropper/Win32.Dapato.C1935389, Trojan/Win32.Dapato.R198997 |
| Arcabit | Trojan.Dropper.166, Trojan.Graftor.D59D4C |
| Avast | Win32:DangerousSig [Trj] |
| Avira | TR/Rundas.rguve, TR/Kryptik.sewvq, BDS/Radmin.gworc, BDS/Radmin.qzqhy |
| Baidu | Win32.Trojan.WisdomEyes.16070401.9500.9909, Win32.Trojan.WisdomEyes.16070401.9500.9902, Win32.Trojan.WisdomEyes.16070401.9500.9776 |
| BitDefender | Gen:Variant.Dropper.166 |
| CAT-QuickHeal | TrojanDropper.Dapato, Trojan.Generic |
| ClamAV | Win.Trojan.Generic-6296444-0 |
| Comodo | UnclassifiedMalware, TrojWare.Win32.TrojanDropper.Dapato.SA |
| CrowdStrike | malicious_confidence_68% (D), malicious_confidence_61% (D) |
| Cyren | W32/Trojan.MBON-3741, W32/Trojan.ERWC-2052, W32/Trojan.RFFL-2734, W32/Trojan.ABZY-2109 |
| DrWeb | BackDoor.Radmin.150 |
| ESET-NOD32 | a variant of Win32/Kryptik.FRGU, a variant of Win32/Kryptik.FRGB |
| Emsisoft | Gen:Variant.Dropper.166 (B) |
| Endgame | malicious (high confidence) pefuj1, malicious (high confidence) |
| F-Secure | Gen:Variant.Dropper.166 |
| Fortinet | W32/GenKryptik.ZUA!tr, W32/GenKryptik.AACH!tr, W32/Kryptik.AZOA!tr, W32/Kryptik.FRBR!tr |
| GData | Gen:Variant.Dropper.166 |
| Ikarus | Trojan.Win32.Krypt, Trojan.Win32.Crypt |
| Invincea | backdoor.win32.pcclient.ai, virus.win32.parite.b |
| Jiangmin | Trojan.Generic.awqbk |
| K7AntiVirus | Trojan ( 0050b4221 ), Unwanted-Program ( 0050afa91 ) |
| K7GW | Trojan ( 0050a3e51 ), Trojan ( 0050b4221 ), Unwanted-Program ( 0050afa91 ) |
| Kaspersky | UDS:DangerousObject.Multi.Generic, HEUR:Trojan.Win32.Generic |
| McAfee | Artemis!3CD7506C8819, Dapato.dr-FUI!F82F28150DA5, Artemis!80E273FDC218, Dapato.dr-FUI!3E47A46C907B, Dapato.dr-FUI!67F4A68FC4E4 |
| McAfee-GW-Edition | Artemis, Dapato.dr-FUI!F82F28150DA5, Artemis!Trojan, Dapato.dr-FUI!3E47A46C907B, Dapato.dr-FUI!67F4A68FC4E4 |
| MicroWorld-eScan | Gen:Variant.Dropper.166 |
| Microsoft | TrojanDropper:Win32/Gendwndrop.E!bit |
| NANO-Antivirus | Trojan.Win32.Dapato.enpmuy, Trojan.Win32.Dapato.enqgpq, Trojan.Win32.Dapato.enrwvg, Trojan.Win32.Dapato.enizko |
| Paloalto | generic.ml |
| Panda | Trj/Genetic.gen, Trj/CI.A |
| Qihoo-360 | HEUR/QVM07.1.3544.Malware.Gen, Win32/Trojan.b28, Win32/Trojan.ebf, HEUR/QVM07.1.8A60.Malware.Gen, Win32/Trojan.d77 |
| Rising | Malware.Generic.5!tfe (cloud:5jjKdaDCupR) , Malware.Heuristic!ET#93% (cloud:1RMLpZ0pDyG) , Trojan.Kryptik!1.AA53 (cloud:hS9BiUQTpxM) |
| SentinelOne | static engine - malicious |
| Sophos | Mal/Generic-S |
| Symantec | Trojan.Gen.8!cloud, Trojan.Gen.6, Trojan.Gen.2, SecurityRisk.gen1 |
| Tencent | Win32.Trojan.Kryptik.Ecah, Win32.Trojan.Kryptik.Eaww, Win32.Trojan.Kryptik.Llrj, Win32.Trojan.Kryptik.Wsam, Win32.Trojan-dropper.Dapato.Wrpy |
| TrendMicro | TROJ_GEN.R00YC0DDM17, TROJ_GEN.R023C0EDM17, TROJ_GEN.R01BC0DDT17 |
| TrendMicro-HouseCall | TROJ_GEN.R00YC0DDM17, TROJ_GEN.R023C0EDM17, TROJ_GEN.R00UC0PE617, TROJ_GEN.R01BC0DDT17 |
| VIPRE | Trojan.Win32.Generic!BT |
| ViRobot | Trojan.Win32.Z.Dropper.410848.G[h], Trojan.Win32.Z.Dropper.414944.T[h], Trojan.Win32.Z.Dropper.414944.BB[h] |
| Webroot | Trojan.Dropper.Gen |
| Yandex | Trojan.Agent!Ces5R8sFnys |
| Zillya | Trojan.KryptikCRTD.Win32.11290 |
| ZoneAlarm | UDS:DangerousObject.Multi.Generic, HEUR:Trojan.Win32.Generic |
* How the Detection Percentage is Calculated
The detection percentage is based on that I have gathered 674 scan reports for the DELTA-STROI files. 387 of these scan reports came up with some sort of detection. If you like, you can review the full details of the scan results by examining the files listed above.
Analysis Details
The analysis is based on certificates with the following serial numbers:
- 00d08ed22da5cf2416e277d937cb14c1d5